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Chapter Reteach Percent - LHP 5th Grade Website

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Chapter Reteach Percent Activity 1 Percent Fill in each blank. 1 of 100 equal parts are shaded. 100 of the large square is shaded. 2 of 100 equal parts are shaded. 100 of the large square is shaded. 1 Reteach Grade 5 © 2020 Marshall Cavendish Education Pte Ltd 1 Percent Name: Date:
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ChapterChapterChapter ReteachPercent

Activity1 PercentFillineachblank.

1

of100equalpartsareshaded.

100 ofthelargesquareisshaded.

2

of100equalpartsareshaded.

100 ofthelargesquareisshaded.

1ReteachGrade5

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1 Percent

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3

of100equalpartsareshaded.

100

ofthelargesquareisshaded.

Fillineachblank.

Example

22 partsof100equalpartsareshaded.

100

22ofthelargesquareisshaded.

22 %ofthelargesquareisshaded.

100

78ofthelargesquareisnotshaded.

78 %ofthelargesquareisnotshaded.

Countthenumberofpartsthatarenotshaded.

Countthenumberofpartsthatareshaded.

2 ReteachGrade5Chapter10Percent

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4 partsof100equalpartsareshaded.

100ofthelargesquareisshaded.

%ofthelargesquareisshaded.

100ofthelargesquareisnotshaded.

%ofthelargesquareisnotshaded.

5 partsof100equalpartsareshaded.

100ofthelargesquareisshaded.

%ofthelargesquareisshaded.

100ofthelargesquareisnotshaded.

%ofthelargesquareisnotshaded.

3ReteachGrade5 1 Percent

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6 partsof100equalpartsareshaded.

100ofthelargesquareisshaded.

%ofthelargesquareisshaded.

100ofthelargesquareisnotshaded.

%ofthelargesquareisnotshaded.

7 partsof100equalpartsareshaded.

100ofthelargesquareisshaded.

%ofthelargesquareisshaded.

100ofthelargesquareisnotshaded.

%ofthelargesquareisnotshaded.

4 ReteachGrade5Chapter10Percent

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Ineachfigure,writetheshadedpartsasapercentofthewholefigure.

30 %

Countthenumberofpartsthatareshaded.Writethenumberasapercent.

Example

8 9

% %

10 11

% %

5ReteachGrade5 1 Percent

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Fillineachblank.

41 %ofthewholefigureisshaded.

59 %ofthewholefigureisnotshaded.

Example

12

13

%ofthewholefigureisshaded.

%ofthewholefigureisnotshaded.

%ofthewholefigureisshaded.

%ofthewholefigureisnotshaded.

6 ReteachGrade5Chapter10Percent

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Answereachquestion.

Shade37%ofthewholefigure.

37%= 37 outof100partsCount 37 partsandshadethem.

Example

14 Shade19%ofthewholefigure.

15 Shade64%ofthewholefigure.

19%= outof100partsCount partsandshadethem.

7ReteachGrade5 1 Percent

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Expressasapercent.

19outof100= 19 %

Example

16 23outof100= %

17 9outof100= %

18 87outof100= %

19 12outof100= %

Expressasapercent.

16 outof100=16%

Example

20 outof100=44%

21 outof100=38%

22 outof100=99%

23 outof100=6%

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8 ReteachGrade5Chapter10Percent

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ChapterChapterChapter ReteachPercent

Activity2 Fractions,Decimals,andPercentExpressasafractionwithadenominatorof100.

1 8outof100 2 46outof100

Expressasadecimal.

3 17100= 4 69100=

Expressasafraction.

5 0.25= 100 6 0.61= 100

Expresseachfractioninsimplestform.

7 1620= 8 48100=

1ReteachGrade5

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2 Fractions,Decimals,andPercent

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0 M

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202

0 M

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Expresseachpercentasafractioninsimplestform.

30%=3

10

Method1

30%=30

100

=3

10

Method2

30%=3

10

0 1

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

110

910

810

710

610

510

410

310

210

Writethepercentasafractionwith100asitsdenominator.Expressthefractioninsimplestform.

Example

2 ReteachGrade5Chapter10Percent

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9 14%=100

=

10 22%=100

11 46%=100

= =

12 55%=100

13 72%=100

= =

Method1

Method2

0 1

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

550

4550

4050

3550

3050

2550

2050

1550

1050

3ReteachGrade5 2 Fractions,Decimals,andPercent

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14 25%= 15 68%=

Expresseachpercentasadecimal.

65%= 0.65

Method1

65%=65

100

= 0.65

Method2

65%= 0.65

0%

0

10%

0.1

20%

0.2

30%

0.3

40%

0.4

50%

0.5

60%

0.6

70%

0.7

80%

0.8

90%

0.9

100%

1

65%

0.65

Writethepercentasafractionwith100asitsdenominator.

Example

4 ReteachGrade5Chapter10Percent

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16 13%=100

17 28%=100

= =

18 34%= 19 7%=

20 41%= 21 66%=

5ReteachGrade5 2 Fractions,Decimals,andPercent

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Expresseachdecimalasapercent.

0.2= 20 %

Method1

0.2=2

10

=20

100

= 20 %

Method2

0%

0

10%

0.1

20%

0.2

30%

0.3

40%

0.4

50%

0.5

60%

0.6

70%

0.7

80%

0.8

90%

0.9

100%

1�

0.2= 20 %

Method3

0.2=0.2×100%

= 20 %

Makethedenominatorto100.

Multiplyby100%

Example

6 ReteachGrade5Chapter10Percent

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22 0.26= %

Method1

0.26=

= %

Method2

0%

0

10%

0.1

20%

0.2

30%

0.3

40%

0.4

50%

0.5

60%

0.6

70%

0.7

80%

0.8

90%

0.9

100%

1�

0.26= %

Method3

0.26= ×

= %

7ReteachGrade5 2 Fractions,Decimals,andPercent

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23 0.03= %

Method1

0.03=

= %

Method2

0%

0

10%

0.1

20%

0.2

30%

0.3

40%

0.4

50%

0.5

60%

0.6

70%

0.7

80%

0.8

90%

0.9

100%

1�

0.03= %

Method3

0.03= ×

= %

24 0.52= 25 0.89=

8 ReteachGrade5Chapter10Percent

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26 0.05= 27 0.92=

Expresseachfractionasapercent.

45= 80 %

Method1

×20

×20

=45

80

100

= 80 %

Method2

0% 20% 40% 60% 80% 100%

0 115

25

35

45

45= 80 %

Method345=4

5×100%

= 80 %

Makethedenominatorto100.5× 20 =100

Example

9ReteachGrade5 2 Fractions,Decimals,andPercent

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28 320= %

Method1

×

=320

×

= %

Method2

0 1220

1820

1620

1420

1220

1020

820

620

420

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

320= %

Method3

320= 3

20×100%

= %

Makethedenominatorto100.

20× =100

10 ReteachGrade5Chapter10Percent

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29 14= 30 11

20=

31 35= 32 19

25=

Expresseachfractionasapercent.

160200

= 80 %

Method1

÷2

÷2

=160200

80

100

= 80 %

Method2160200

= 80 %

0 1

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

20200

180200

160200

140200

120200

100200

80200

60200

40200

Makethedenominatorto100.

200÷ 2 =100

Example

11ReteachGrade5 2 Fractions,Decimals,andPercent

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Method3160200

= 160200

×100%

=16000200

= 80 %

33 35500

= %

Method1

÷

=35500

÷

= %

Method2

35500

= %

Makethedenominatorto100.

500÷ =100

0 1

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

50500

450500

400500

350500

300500

250500

200500

150500

100500

12 ReteachGrade5Chapter10Percent

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Method3

35500

= ×100%

=

= %

34 318600

= % 35 256400

= %

36 111300

= % 37 336700

= %

13ReteachGrade5 2 Fractions,Decimals,andPercent

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ChapterChapterChapter ReteachPercent

Activity3 PercentofaQuantitySolve.

1 56×54= 2 511×66=

3 49×81= 4 1425×75=

5 1315×90= 6 712×96=

1ReteachGrade5

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3 PercentofaQuantity

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Solve.

Findthevalueof20%of150.

Method1

20%

150

?

100% 150

1% � 150 ÷ 100

= 1.5

20% � 20 × 1.5

= 30

Method2

20%of150= 20% × 150

=20

100× 150

= 30

100%isthetotalquantity.

Example

2 ReteachGrade5Chapter10Percent

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7 Findthevalueof28%of400.

Method1

?

100%

1% ÷

=

28% � ×

=

Method2

28%of400= ×

= ×

=

3ReteachGrade5 3 PercentofaQuantity

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8 Findthevalueof46%of700.

9 Findthevalueof37%of1,450.

4 ReteachGrade5Chapter10Percent

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Solve.

Findthevalueof24%of350centimeters.

Method1

24%

350centimeters

?

100% 350 centimeters

1% � 350 ÷ 100

= 3.5 centimeters

24% � 24 × 3.5

= 84 centimeters

Method2

24%of350centimeters= 24% × 350

=24

100× 350

= 84 centimeters

Example

5ReteachGrade5 3 PercentofaQuantity

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10 Findthevalueof19%of600kilograms.

Method1

?

100% kilograms

1% � ÷

= kilograms

19% � ×

= kilograms

Method2

19%of600kilograms= ×

= ×

= kilograms

6 ReteachGrade5Chapter10Percent

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11 Findthevalueof25%of896miles.

Method1

?

100% miles

1% � ÷

= miles

25% � ×

= miles

Method2

25%of896miles= ×

= ×

= miles

7ReteachGrade5 3 PercentofaQuantity

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12 Findthevalueof3%of1,900pounds.

13 Findthevalueof72%of2,590inches.

8 ReteachGrade5Chapter10Percent

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14 Findthevalueof47%of4,650fluidounces.

15 Findthevalueof54%of6,085milliliters.

9ReteachGrade5 3 PercentofaQuantity

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ChapterChapterChapter ReteachPercent

Activity4 Real-WorldProblems:PercentSolve.Drawabarmodeltohelpyou.

Arefrigeratorcost$1,250.Therewasa7%salestaxontherefrigerator.Howmuchwasthesalestax?

Method1$1,250

7%

? 100% $1,250

1% $1,250 ÷ 100

= $12.50

7 % $12.50 × 7

= $87.50

Thesalestaxwas $87.50 .

100%isthepriceoftherefrigerator.

Example

1ReteachGrade5

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4 Real-WorldProblems:Percent

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1 Afurnituresetcost$5,600atHomeMart.Therewasan8%salestaxonthefurnitureset.Howmuchwasthesalestax?

Method1

Model:

? 100%

1% � ÷

=

% � ×

=

Thesalestaxwas .

Method2

7 %of $1,250 =7

100 × $1,250

= $87.50 .

Thesalestaxwas $87.50 .

2 ReteachGrade5Chapter10Percent

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Method2

%of = ×

=

Thesalestaxwas .

2 Mr.Nelsonboughtapairofpantsthatcost$59.Hepaidasalestaxof6%onthepriceofthepairofpants.HowmuchsalestaxdidMr.Nelsonpay?

3 Callieboughtasurfboardthatcost$269.Shepaidasalestaxof7%onthepriceofthesurfboard.Whatwasthetotalcostofthesurfboardincludingthesalestax?

3ReteachGrade5 4 Real-WorldProblems:Percent

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Solve.Drawabarmodeltohelpyou.

Mr.Edwardsbroughthisfamilytoarestaurantforlunch.Themealcost$280.Therewasa5%salestaxanda3%mealstaxonthepriceofthemeal.Howmuchwasthecombinedtax?

Combinedtax= 5 + 3

= 8%

Method1$280 8%

?

100% $280

1% � $280 ÷ 100

= $2.80

8 % � $2.80 × 8

= $22.40

Thecombinedtaxwas $22.40 .

Method2

8 %of $280 =8100 × $280

= $22.40

Thecombinedtaxwas $22.40 .

AmealstaxisappliedinDGGLWLRQ�WR�D�VWDWHŖV�VDOHV�taxonthepurchaseofpreparedfood.

Example

4 ReteachGrade5Chapter10Percent

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4 Amirahhadherdinneratacaféthatcost$43.Therewasa6%sales taxanda5%mealstaxonthepriceofherdinner.Howmuchwasthecombinedtax?

Combinedtax= +

=

Method1

? 100%

1% � ÷

=

% � ×

=

Thecombinedtaxwas .

Method2

%of = ×

=

Thecombinedtaxwas .

5ReteachGrade5 4 Real-WorldProblems:Percent

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09(M)MIF2020G5B_RT_10.indd 5 5/4/19 5:39 AM

5 Afamilyvaluemealforfourcost$310inarestaurant.Therewasa4%salestaxanda2%mealstaxonthepriceofthemeal.Whatwasthetotalcostofthefamilyvaluemealincludingthetaxes?

6 ReteachGrade5Chapter10Percent

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09(M)MIF2020G5B_RT_10.indd 6 5/4/19 5:39 AM

Solve.Drawabarmodeltohelpyou.

Theusualpriceofatelevisionwas$2,360.Duringasale,Mrs.Smithboughtitata25%discount.Howmuchwasthediscount?

Method1

$2,360regularprice

discountprice

25%($?)

100%

100% $2,360

1% � $2,360 ÷ 100

= $23.60

25 % � $23.60 × 25

= $590

Thediscountwas $590 .

Thediscountisthedifferencebetweentheregularpriceandthesellingprice.Itistheamountyousave.

Example

7ReteachGrade5 4 Real-WorldProblems:Percent

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09(M)MIF2020G5B_RT_10.indd 7 5/4/19 5:39 AM

6 Ashoeshopishavinga20%offstorewidesale.Theregularpriceofapairofbootsis$128.Howmuchisthediscount?

Method1

regularprice

discountprice

100%

1% ÷

=

% ×

=

Thediscountis .

Method2

Discount= 25 %ofregularprice

=25100 × $2,360

= $590

Thediscountwas $590 .

Example

8 ReteachGrade5Chapter10Percent

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09(M)MIF2020G5B_RT_10.indd 8 5/4/19 5:39 AM

Method2

Discount= %ofregularprice

= ×

=

Thediscountis .

7 Ms.Carterwenttoacircus.Theadmissionticketcost$76.Therewasa10%discount.Howmuchwasthediscount?

8 Theoriginalpriceofacaseofsodawas$14.Farrahhada5%discount code.HowmuchdidFarrahpayforthecaseofsoda?

9ReteachGrade5 4 Real-WorldProblems:Percent

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09(M)MIF2020G5B_RT_10.indd 9 5/4/19 5:39 AM

Solve.Drawabarmodeltohelpyou.

Mr.Kingdeposits$6,500inabankthatpaysaninterestof6%peryear.Howmuchmoneywillhehaveinhisbankaccountattheendof1year?

$6,500 6%

100%

?

Interest= 6 %of $6,500

=6100 × $6,500

= $390

Amountofmoneyintheaccountattheendof1year

=Moneydeposited+Interest

= $6,500 + $390

= $6,890

Mr.Kingwillhave $6,890 inhisbankaccountattheendof1year.

Example

Interestistheamountthatabankpaysyoufordepositingyourmoneywiththem.

10 ReteachGrade5Chapter10Percent

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09(M)MIF2020G5B_RT_10.indd 10 5/4/19 5:39 AM

9 Ms.Lopezinvested$7,000inaninvestmentfundwithabank.Thebankpaid5%interestattheendofeachyear.HowmuchmoneydidMs.Lopezhaveinherinvestmentaccountattheendof1year?

?

Interest= %of

= ×

=

Amountofmoneyintheinvestmentaccountattheendof1year

=Moneyinvested+Interest

= +

=

Ms.Lopezhad inherinvestmentaccountattheendof1year.

Interestistheamountthatabankpaysyouforinvestingyourmoneywiththem.

11ReteachGrade5 4 Real-WorldProblems:Percent

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09(M)MIF2020G5B_RT_10.indd 11 5/4/19 5:39 AM

10 Ricardodeposits$500intoasavingsaccountatalocalbankthatpaysaninterestof4.5%peryear.Howmuchmoneywillhehaveinhisbankaccountattheendof1year?

11 Mr.Hillinvested$5,500inaninvestmentfundwithalocalbank.Thebankpaid7%interestattheendofeachyear.HowmuchmoneydidMr.Hillhaveinhisinvestmentaccountattheendof1year?

12 ReteachGrade5Chapter10Percent

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09(M)MIF2020G5B_RT_10.indd 12 5/4/19 5:39 AM

Solve.Drawabarmodeltohelpyou.

Lunaborrowed$640tobuyacellphonefromCompanyWells.Shepaid7%interestinthefirstyear.HowmuchinterestdidLunapayinthefirstyear?

$640 7%

?

100% $640

1% $640 ÷ 100

= $6.40

7 % $6.40 × 7

= $44.80

Lunapaid $44.80 interestinthefirstyear.

Example

Interesthereistheamountofmoneyyoupaytothecompanyforborrowingmoneyfromthem.

13ReteachGrade5 4 Real-WorldProblems:Percent

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09(M)MIF2020G5B_RT_10.indd 13 5/4/19 5:39 AM

12 Mr.Taylorforgottopayhiselectricitybillof$270forthemonthofFebruary.Aninterestof4%permonthischargedonanyunpaidbill.HowmuchinterestwaschargedtoMr.Taylorafter1month?

?

100%

1% ÷

=

% ×

=

Mr.Taylorwaschargedwith interestafter1month.

13 Vanessagotastudentloanof$13,000fromabankthatcharged3%interestperyear.HowmuchinterestdidVanessapayforthefirstyear?

14 ReteachGrade5Chapter10Percent

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09(M)MIF2020G5B_RT_10.indd 14 5/4/19 5:39 AM

Solve.Drawabarmodeltohelpyou.

Thereare380piecesoffruit.45%ofthepiecesoffruitarestrawberriesandtherestareraspberries.Howmanyraspberriesarethere?

Percentofraspberries= 100% − 45%

= 55%

Method1?

45%

380piecesoffruit

100% 380

1% 380 ÷ 100

= 3.8

55 % 3.8 × 55

= 209

Thereare 209 raspberries.

Method2

55%oftotalfruits=55100 × 380

= 209

Thereare 209 raspberries.

Example

Thetotalnumberofpiecesoffruitis100%.

15ReteachGrade5 4 Real-WorldProblems:Percent

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09(M)MIF2020G5B_RT_10.indd 15 5/4/19 5:39 AM

14 Ametalrodweighs16.25ounces.84%oftherodissilverandtherestis iron.Howmanyouncesofironareintherod?

15 Acricketteamwon70%ofthetotalmatchesitplayedduringtheyear.Iftheteamlost18matchesinallandnomatchesweredrawn,howmanymatchesdidthecricketteamplayinallduringtheyear?

16 ReteachGrade5Chapter10Percent

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09(M)MIF2020G5B_RT_10.indd 16 5/4/19 5:39 AM

Totalunits=4+1+7=12

7units=63in2

1unit=63÷7=9in2

12units=9×12=108in2

Theareaofallthethreesquaresis108in2.

Chapter10 PercentActivity1 Percent

1 17

10017

2 33

10033

3 56

10056

4 35

10035

35%

10065

65%

5 44

10044

44%

10056

56%

6 40

10040

40%

10060

60%

7 20

10020

20%

10080

80%

8 8%

9 90%

10 19%

11 37%

12 42% 58%

13 36% 64%

14 Answers

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ReteachGrade5

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14 19 19

15

16 23%

17 9%

18 87%

19 12%

20 44

21 38

22 99

23 6

Activity2 Fractions,Decimals,andPercent

15Answers

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10(M)MIF2020G5B_RT_06-10_Ans.indd 15 06/05/19 6:58 PM

23 6

Activity2 Fractions,Decimals,andPercent

1 8100

2 46100

3 0.17

4 0.69

5 10025

6 10061

7 5

4

8 25

12

9 Method1

14%=10014

=50

7

Method2

10 22%=10022

=50

11

11 46%=10046

=50

23

12 55%=10055

= 1120

13 72%=10072

= 1825

14 25%= 25100

=14

0 1

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

750

14%

550

1050

1550

2050

2550

3050

3550

4050

4550

15Answers

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10(M)MIF2020G5B_RT_06-10_Ans.indd 15 06/05/19 6:58 PM

15 68%= 68100

= 1725

16 13%=10013

=0.13

17 28%=10028

=0.28

18 34%= 34100

=0.34

19 7%= 7100

=0.07

20 41%= 41100

=0.41

21 66%= 66100

=0.66

22 0.26= 26 % Method1

0.26=100

26

= 26 %

Method2

0.26= 26 %

Method3 0.26= 0.26 × 100 %

= 26 %

26%

0.26

0%

0

10%

0.1

20%

0.2

30%

0.3

40%

0.4

50%

0.5

60%

0.6

70%

0.7

80%

0.8

90%

0.9

100%

1✗

23 0.03= 3 % Method1

0.03=100

3

= 3 %

Method2

0.03= 3 %

Method3 0.03= 0.03 × 100 %

= 3 %

24 Method1 0.52= 52

100

=52%

Method2

0.52=52%

Method3 0.52=0.52×100%

=52%

25 Method1 0.89= 89

100

=89%

✗0%

0

10%

0.1

20%

0.2

30%

0.3

40%

0.4

50%

0.5

60%

0.6

70%

0.7

80%

0.8

90%

0.9

100%

1

3%

0.03

✗0%

0

10%

0.1

20%

0.2

30%

0.3

40%

0.4

50%

0.5

60%

0.6

70%

0.7

80%

0.8

90%

0.9

100%

1

52%

0.52

16 Answers

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Method2

0.89=89%

Method3 0.89=0.89×100%

=89%

26 Method1 0.05= 5

100

=5%

Method2

0.05=5%

Method3 0.05=0.05×100%

=5%

27 Method1 0.92= 92

100

=92%

Method2

0.92=92%

Method3 0.92=0.92×100%

=92%

0%

0

10%

0.1

20%

0.2

30%

0.3

40%

0.4

50%

0.5

60%

0.6

70%

0.7

80%

0.8

90%

0.9

100%

1✗

89%

0.89

0%

0

10%

0.1

20%

0.2

30%

0.3

40%

0.4

50%

0.5

60%

0.6

70%

0.7

80%

0.8

90%

0.9

100%

1✗

5%

0.05

0%

0

10%

0.1

20%

0.2

30%

0.3

40%

0.4

50%

0.5

60%

0.6

70%

0.7

80%

0.8

90%

0.9

100%

1

92%

0.92

28 320=15%

20× 5 =100

Method1

Method2

320=15%

Method3 3

20= 3

20×100%

=15%

29 Method1 1

4= 25

100

=25%

Method2

14=25%

Method3 1

4=1

4×100%

=25%

30 Method1 11

20= 55

100

=55%

×

=320

×

15

5

5

100

0 1220

1820

1620

1420

1220

1020

820

620

420

320

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

15%

0% 25% 50% 75% 100%

0 114

24

34

17Answers

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Method2

1120=55%

Method3 11

20= 11

20×100%

=55%

31 Method1 3

5= 60

100

=60%

Method2

35=60%

Method3 3

5=3

5×100%

=60%

32 Method1 19

25= 76

100

=76%

Method2

1925=76%

0 1220

1820

1620

1420

1220

1020

820

620

420

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

1120

55%

0% 20% 40% 60% 80% 100%

0 115

25

35

45

0% 20% 40% 60% 80% 100%

0 1525

1025

1525

2025

1925

76%

Method3 19

25=19

25×100%

=76%

33 35500

=7%

500÷ 5 =100

Method1

Method2 35

500=7%

Method3

35500

=500

35×100%

= 7100

=7%

34 Method1 318

600= 53

100

=53%

÷

=35500

7

5

÷ 5

100

0 1

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

35500

7%

50500

100500

150500

200500

250500

300500

350500

400500

450500

18 Answers

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Method2 318

600=53%

Method3 318

600=318

600×100%

=53%

35 Method1 256

400= 64

100

=64%

Method2 256

400=64%

Method3 256

400=256

400×100%

=64%

36 Method1 111

300= 37

100

=37%

53%

0 1

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

318600

60600

120600

180600

240600

300600

360600

420600

480600

540600

0 1

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

40400

80400

120400

160400

200400

240400

280400

320400

360400

64%

256400

Method2 111

300=37%

Method3 111

300= 111

300×100%

=37%

37 Method1 336

700= 48

100

=48%

Method2 336

700=48%

Method3 336

700=336

700×100%

=48%

Activity3 PercentofaQuantity

0 1

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

30300

60300

90300

120300

150300

180300

210300

240300

270300

37%

111300

0 1

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

70700

140700

210700

280700

350700

420700

490700

560700

630700

48%

336700

19Answers

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10(M)MIF2020G5B_RT_06-10_Ans.indd 19 06/05/19 6:58 PM

336700

×100%

=48%

Activity3 PercentofaQuantity

1 45

2 30

3 36

4 42

5 78

6 56

19Answers

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7 Method1

100% 400 1% 400 ÷ 100 = 4 28% 28 × 4 = 112

Method2 28%of400= 28 %× 400

=100

28× 400

= 112

8 Method1

100% 700 1% 700÷100 =7 46% 46×7 =322

Method2 46%of700=46%×700

= 46100

×700

=322

9 Method1

100% 1,450 1% 1,450÷100 =14.5 37% 37×14.5 =536.5

?

400

28%

46%

?

700

37%

?

1,450

Method2 37%of1,450=37%×1,450

= 37100

×1,450

=536.5

10 Method1

100% 600 kilograms 1% 600 ÷ 100 = 6 kilograms 19% 19 × 6 = 114 kilograms Method2 19%of600kilograms= 19% × 600

=100

19× 600

= 114 kilograms

11 Method1

100% 896 miles 1% 896 ÷ 100 = 8.96 miles 25% 25 × 8.96 = 224 miles

Method2 25%of896miles= 25% × 896

=100

25× 896

= 224 miles

?

600kilograms

19%

?

896miles

25%

20 Answers

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12 Method1

100% 1,900pounds 1% 1,900÷100 =19pounds 3% 3×19 =57pounds

Method2 3%of1,900pounds=3%×1,900

= 3100

×1,900

=57pounds

13 Method1

100% 2,590inches 1% 2,590÷100 =25.9inches 72% 72×25.9 =1,864.8inches

Method2 72%of2,590inches=72%×2,590

= 72100

×2,590

=1,864.8inches

14 Method1

100% 4,650fluidounces 1% 4,650÷100 =46.5fluidounces 47% 47×46.5 =2,185.5fluidounces

?

3% 1,900pounds

72%

?

2,590inches

47%

?

4,650fluidounces

Method2 47%of4,650fluidounces=47%×4,650

= 47100

×4,650

=2,185.5fluidounces15 Method1

100% 6,085milliliters 1% 6,085÷100 =60.85milliliters 54% 54×60.85 =3,285.9milliliters

Method2 54%of6,085milliliters=54%×6,085

= 54100

×6,085

=3,285.9milliliters

Activity4 Real-WorldProblems:Percent

54%

?

6,085milliliters

21Answers

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10(M)MIF2020G5B_RT_06-10_Ans.indd 21 06/05/19 6:58 PM

54100

×6,085

=3,285.9milliliters

Activity4 Real-WorldProblems:Percent

1 Method1

100% $5,600 1% $5,600 ÷ 100 = $56 8 % $56 × 8 = $448 Thesalestaxwas $448 .

Method2 8 %of $5,600 = 8

100 × 5,600

= $448

Thesalestaxwas $448 .

$5,600 8%

?

21Answers

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10(M)MIF2020G5B_RT_06-10_Ans.indd 21 06/05/19 6:58 PM

2 Method1

100% $59 1% $59÷100 =$0.59 6% $0.59×6 =$3.54 Mr.Nelsonpaid$3.54.

Method2 6%of$59= 6

100×59

=$3.54 Mr.Nelsonpaid$3.54.

3 Method1

100% $269 1% $269÷100 =$2.69 7% $2.69×7 =$18.83 Totalcost=$269+$18.83 =$287.83 Thetotalcostofthesurfboardincludingsales

taxwas$287.83.

Method2 7%of$269= 7

100×269

=$18.83 Totalcost=$269+$18.83

=$287.83 Thetotalcostofthesurfboardincludingsales

taxwas$287.83.

?

6%$59

?

$269 7%

4 Combinedtax= 6 + 5 = 11%

Method1

100% $43 1% $43 ÷ 100 = $0.43 11 % $0.43 × 11 = $4.73 Thecombinedtaxwas $4.73 . Method2 11 %of $43 = 11

100 × 43

= $4.73

Thecombinedtaxwas $4.73 .

5 Combinedtax=4+2=6%

Method1

100% $310 1% $310÷100 =$3.10 6% $3.10×6 =$18.60 Totalcostoffamilyvaluemealincludingtaxes

=$310+$18.60=$328.60Thetotalcostofthefamilyvaluemealincludingtaxeswas$328.60.

Method2 6%of$310= 6

100×310

=$18.60 Totalcostoffamilyvaluemealincludingtaxes

=$310+$18.60=$328.60Thetotalcostofthefamilyvaluemealincludingtaxeswas$328.60.

$43 11%

?

?

$310 6%

22 Answers

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6 Method1

100% $128 1% $128 ÷ 100 = $1.28 20 % $1.28 × 20 = $25.60 Thediscountis $25.60 ..

Method2 Discount= 20 %ofregularprice

= 20100

× $128

= $25.60 Thediscountis $25.60 ..

7 Method1

100% $76 1% $76÷100 =$0.76 10% $0.76×10 =$7.60 Thediscountwas$7.60.

Method2 Discount=10%ofregularprice

= 10100

×$76=$7.60

Thediscountwas$7.60.

100%

20%($?)

regularprice

discountprice

$128

$76regularprice

discountprice

10%($?)

100%

8 Method1

100% $14 1% $14÷100 =$0.14 5% $0.14×5 =$0.70 $14–$0.70=$13.30 Farrahpaid$13.30.

Method2 Discount=5%ofregularprice

= 5100

×$14

=$0.70 $14–$0.70=$13.30 Farrahpaid$13.30.

9

Interest= 5 %of $7,000

= 5100

× $7,000

= $350 Moneyinvested+Interest= $7,000 + $350

= $7,350

Ms.Lopezhad $7,350 inherinvestmentaccountattheendof1year.

$14regularprice

discountprice

100%

5%?

$7,000 5%

?

23Answers

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10

Interest=4.5%of$500 =4.5

100×$500

=$22.50 Moneydeposited+Interest=$500+$22.50

=$522.50 Ricardowillhave$522.50inhisbankaccount

attheendof1year.

11

Interest=7%of$5,500= 7100

×$5,500

=$385 Moneyinvested+Interest=$5,500+$385

=$5,885 Mr.Hillhad$5,885inhisinvestmentaccountat

theendof1year.

12

100% $270 1% $270 ÷ 100 = $2.70 4 % $2.70 × 4 =$10.80 Mr.Taylorwaschargedwith$10.80 interest

after1month.

?

$500 4.5%

?

$5,500 7%

$270 4%

?

13

100% $13,000 1% $13,000÷100 =$130 3% $130×3 =$390 Vanessapaid$390interestforthefirstyear.

14 Percentofiron=100%−84%=16%

Method1

100% 16.25oz 1% 16.25÷100 =0.1625oz 16% 0.1625×16 =2.6oz 2.6ouncesofironareintherod.

Method2 16%ofweightofmetalrod= 16

100×16.25

=2.6oz 2.6ouncesofironareintherod.

15 Percentoflostmatches=100%−70%=30%

30% 18 1% 18÷30 =0.6 100% 0.6×100 =60 Thecricketteamplayed60matchesinall

duringtheyear.

?

$13,000 3%

?

84%

16.25ounces

?

70%

18matches

24 Answers

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