Rounding Adventures: Estimating Sums and Differences

Lily has 27 apples. She wants to round to the nearest ten. How many apples does she have after rounding?

• 30

• 35

• 25

• 20

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Tom has 43 marbles. If he buys 18 more, how many marbles does he have after rounding to the nearest ten?

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• 70

• 30

A box contains 56 crayons. If 23 crayons are used, how many crayons are left when rounded to the nearest ten?

• 30

• 20

• 40

• 50

Sarah read 34 pages of a book. If she reads 19 more pages, how many pages has she read in total when rounded to the nearest ten?

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• 70

There are 78 students in a school. If 15 students go on a field trip, how many students are left when rounded to the nearest ten?

• 50

• 65

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• 70

A farmer has 62 pumpkins. He sells 29 pumpkins. How many pumpkins does he have left after rounding to the nearest ten?

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• 40

• 20

• 30

In a toy store, there are 45 toy cars. If 22 toy cars are sold, how many toy cars are left when rounded to the nearest ten?

• 15

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• 25

• 20

A library has 91 books. If 27 books are checked out, how many books remain when rounded to the nearest ten?

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• 80

Emma collected 36 stickers. If she gives away 14 stickers, how many stickers does she have left when rounded to the nearest ten?

• 25

• 30

• 10

• 20

A bakery made 84 cookies. If they sold 39 cookies, how many cookies are left when rounded to the nearest ten?

• 40

• 60

• 50

• 70