Estimating and Checking Multi-Step Math Problems

Lily has 45 apples. She gives 12 apples to her friend and then buys 20 more. How many apples does she have now? Estimate your answer and check if it makes sense.

• 53

• 33

• 45

• 62

Tom has 60 marbles. He loses 15 marbles and then finds 10 more. How many marbles does he have now? Estimate your answer and check if it makes sense.

• 45

• 55

• 70

• 50

A farmer has 120 oranges. He sells 30 oranges and then picks 50 more from his trees. How many oranges does he have now? Estimate your answer and check if it makes sense.

• 130

• 140

• 100

• 90

Sarah read 25 pages of her book on Monday and 30 pages on Tuesday. If she has 100 pages left to read, how many pages does she have in total? Estimate your answer and check if it makes sense.

• 145 pages

• 120 pages

• 155 pages

• 175 pages

In a toy store, there are 150 toys. If 45 toys are sold and 25 new toys are added, how many toys are in the store now? Estimate your answer and check if it makes sense.

• 140

• 130

• 150

• 120

A school has 200 students. If 50 students move away and 30 new students enroll, how many students are there now? Estimate your answer and check if it makes sense.

• 180

• 170

• 200

• 150

Mark has 80 stickers. He gives 25 stickers to his sister and then receives 15 stickers from a friend. How many stickers does he have now? Estimate your answer and check if it makes sense.

• 55

• 65

• 70

• 90

Emma has 90 candies. She eats 20 candies and then buys 40 more. How many candies does she have now? Estimate your answer and check if it makes sense.

• 130

• 70

• 110

• 100

A library has 300 books. If 75 books are checked out and 50 new books are added, how many books are in the library now? Estimate your answer and check if it makes sense.

• 225

• 250

• 275

• 300

Jake has 50 toy cars. He gives away 10 cars and then buys 20 more. How many toy cars does he have now? Estimate your answer and check if it makes sense.

• 70

• 60

• 30

• 40