Rounding and Reasoning: Fun Real-World Math Problems

Lily has 47 apples. She wants to round to the nearest ten. What is the rounded number? Explain your reasoning.

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Tom has 82 marbles. He buys 15 more. How many marbles does he have now? Round to the nearest ten and explain how you rounded.

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A bakery made 63 cookies. They sold 29 cookies. How many cookies are left? Round the remaining cookies to the nearest ten and explain your rounding.

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Sarah read 54 pages of a book. She plans to read 27 more pages. How many pages will she have read in total? Round to the nearest ten and explain your reasoning.

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In a classroom, there are 38 pencils. The teacher buys 22 more. How many pencils are there now? Round to the nearest ten and explain how you got your answer.

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A toy store has 76 toys. They sold 19 toys. How many toys are left? Round to the nearest ten and explain your rounding process.

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Mark collected 45 stamps. He found 18 more stamps. How many stamps does he have now? Round to the nearest ten and explain your reasoning.

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A farmer has 91 chickens. He sells 34 chickens. How many chickens does he have left? Round to the nearest ten and explain how you rounded.

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Emma has 29 stickers. She buys 16 more. How many stickers does she have now? Round to the nearest ten and explain your reasoning.

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A library has 57 books. They donate 23 books. How many books are left? Round to the nearest ten and explain your rounding process.

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