Estimating Sums and Differences in Fun Math Problems

Lily has 15 apples. She gives 7 apples to her friend. How many apples does she have left? Estimate the answer first and explain your reasoning.

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Tom has 8 toy cars. He buys 5 more toy cars. How many toy cars does he have now? Estimate the total and explain how you found your answer.

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A farmer has 20 chickens. 4 chickens run away. How many chickens does the farmer have now? Estimate and explain your thought process.

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Sarah has 12 stickers. She gives 3 stickers to her brother. How many stickers does she have left? Estimate and explain your answer.

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In a box, there are 25 crayons. 10 crayons are broken. How many crayons are not broken? Estimate and explain your reasoning.

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Jake has 30 marbles. He loses 12 marbles. How many marbles does he have now? Estimate the difference and explain how you calculated it.

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Emma has 18 books. She buys 7 more books. How many books does she have in total? Estimate and explain your reasoning.

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A baker made 50 cookies. He sold 23 cookies. How many cookies does he have left? Estimate and explain your answer.

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There are 40 students in a class. 15 students go home early. How many students are still in class? Estimate and explain your reasoning.

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Mia has 22 balloons. 5 balloons pop. How many balloons does she have left? Estimate and explain how you arrived at your answer.

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