Estimating Sums & Differences: Fun with Math Problems

Lily has 125 marbles. She gives 37 marbles to her friend. How many marbles does she have left?

• 75

• 100

• 88

• 50

A farmer has 250 apples. He picks 45 more apples from his trees. Estimate how many apples he has now.

• 250

• 275

• 295

• 300

Tom read 48 pages of his book on Monday and 36 pages on Tuesday. How many pages did he read in total?

• 60

• 90

• 72

• 84

Sarah has 90 stickers. She buys 25 more stickers. How many stickers does she have now?

• 115

• 85

• 100

• 120

A toy store had 150 toys. They sold 67 toys on Saturday. How many toys are left in the store?

• 75

• 100

• 83

• 90

In a classroom, there are 32 boys and 28 girls. Estimate the total number of students in the classroom.

• 50

• 60

• 58

• 62

A baker made 200 cookies. He sold 85 cookies. How many cookies does he have left?

• 115

• 150

• 75

• 100

Emma collected 75 seashells at the beach. She gave 20 seashells to her friend. How many seashells does she have now?

• 60

• 50

• 55

• 70

A library has 1,200 books. If 150 books are checked out, how many books remain in the library?

• 900

• 1050

• 1150

• 1200

During a sale, a store had 500 shirts. They sold 215 shirts. Estimate how many shirts are still available.

• 300

• 250

• 400

• 285