Unit 1 Review Flashcards

ALA: Pre-AlgebraUnit 1 Whole Numbers

PUTTING IT ALL TOGETHER

PRACTICING FOR THE ALA Unit 1 Exam

Universal Truths

8 ÷ 81

100 ÷ 1001

257 ÷ 257

1

Any number divided by itself = 1.

8 + 0

8

100 + 0100

Adding zero to any number gives you the same number.

8 - 80

547 - 5470

Any number minus itself always gives

you zero.

8 18

933 1933

Multiplying any number by 1 gives

you the same number.

8 00

632 00

Multiplying any number by 0 gives

you 0.

DON’T YOU DARE!

8 ÷ 0undefined

You can’t divide by 0. N ÷ 0

5 x 48 × 2

480

97 + 496 + 3

596

COMMUTATIVE PROPERTY

OF ADDITION AND MULTIPLICATION

You can add in any order without changing the sum.You can multiply in any order without changing the

product.

ORDER OF OPERATIONS

PLEASEEXCUSE MY DEARAUNT SALLY

4 + 5 × 3

19

20 ÷ 5 × 4

16

(6 + 3)2

81

1 + 5(6 – 3)2

46

Interview with a Number

100Even or odd?

Perfect Square?

Divisible by 3?

Divisible by 5?

Divisible by 4?

Divisible by 10?

even

yes

no

yes

yes

yes

Prime or composite? composite

Interview with a Number

85Even or odd?

Perfect Square?

Divisible by 3?

Divisible by 5?

Divisible by 4?

Divisible by 10?

odd

no

no

yes

no

no

Prime or composite? composite

Make a Factor Tree!

198

2 x 3 x 3 x 11

ROUND 694.827To the nearest ten:

To the nearest unit:

To the nearest hundred:

690

695

700

WRITE THESE NUMBERS:

One million

Three hundred thousand

One billion

One bazillion

One googol

1,000,000 = 106

300,000

1,000,000,000= 109

Not a number!

10100

ADD, SUBTRACT, MULTIPLY, AND DIVIDE:

29595

SUM

PRODUCT

DIFFERENCE

QUOTIENT

624 566

17255 20 r 15

Start with 10

DOUBLE IT:

HALVE IT:

SQUARE IT:

20

5

100

4:23 pmWhat time is it in military time?

1623

0927What time is it in normal time?

9:27 am

90, 80, 90, 70, 20 Mean: 70 Median: 80Mode: 90

Calculate the Mean, Median, and Mode of these test scores:

Resources:

Picture on slide 2Working Together Teamwork Puzzle Concept by lumaxart is licensed under CC BY-SA 2.0

Picture on slide 3Truth or Consequences by einelem is licensed under CC BY-SA 2.0

Clip Art on slide 20Hangover by Martin Fuhrmann is available in the public domain under CC0 Public Domain

Picture on slide 26Smiling Grandma Fab Sunglasses White Hair by Stephen Depolo is licensed under CC BY 2.0

Clip Art on slide 31 and 32Microphone is available in the public domain under CC0 Public Domain

Clip Art on slide 33 Christree by Christreat is licensed under CC BY-SA 4.0

Clip Art on slide 34Abstract Psychedelic Swirl is available in the public domain under CC0 Public Domain

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