Round to the nearest 10

1 Whichmultiplesof10dothenumberssitbetween?

Completethenumberline.

a) Circlethenumber27

Whichmultipleof10is27closestto?

27roundedtothenearest10is

b) Circlethenumber23

Whichmultipleof10is23closestto?

23roundedtothenearest10is

2 Hereisanumberline.

Whichnumbersrounddownto40?

Whichnumbersroundupto50?

©WhiteRoseMaths2019

20 21 22 23 24 25 26 27 28 29 30

40 41 42 43 44 45 46 47 48 49 50

3 Roundeachnumbertothenearest10

a)41 d)79 g)33

b)19 e)9 h)71

c)25 f)4 i)99

4

a) Arethesenumberscloserto120or130?

Usethenumberlinetohelpyoucompletethesentences.

121iscloserto than

124iscloserto than

127iscloserto than

125isthesamedistancefrom asitisfrom

b) Roundeachnumbertothenearest10

121 124 127 125

120 121 124 125 127 130

5 Roundeachnumbertothenearest10

a)

b) 712

c)

d) XXIX

e)

f) CXVIII

6 Circlethenumbersthatroundto380tothenearest10

389 379 371 381 375 385

©WhiteRoseMaths2019

1 10 100 1,000 10,000 100,000 1,000,0001 10 100 1,000 10,000 100,000 1,000,0001 10 100 1,000 10,000 100,000 1,000,0001 10 100 1,000 10,000 100,000 1,000,0001 10 100 1,000 10,000 100,000 1,000,0001 10 100 1,000 10,000 100,000 1,000,000

H T O

7 Circlethenumbersthatroundto200tothenearest10

150 207 196 193 209 195

8

DoyouagreewithRon?Explainyouranswer.

9 Thereare450childreninaschool,tothenearest10

Howmanychildrencouldtherebeintheschool?

10 Twodifferent2-digitnumbersroundto70tothenearest10

Thesumofthetwonumbersis136

Whatcouldthetwonumbersbe?

To round to the nearest 10, I only need to look at the

ones column.