Estimating Sums & Differences in Grade 5 Word Problems

A bakery made 245 cookies in the morning and 378 cookies in the afternoon. Estimate how many cookies were made in total.

• 500

• 450

• 600

• 700

Sarah has 1,250 marbles. She gave 478 marbles to her friend. How many marbles does she have left? Estimate the difference first.

• 800

• 900

• 650

• 772

A library has 3,456 books. If 1,234 books are checked out, how many books remain in the library?

• 1,000

• 2222

• 3,000

• 2,500

Tom collected 1,200 baseball cards. He bought 345 more cards. Estimate the total number of cards he has now.

• 1,500

• 1,800

• 1,200

• 1,000

A farmer harvested 2,500 apples and sold 1,275 apples at the market. How many apples does he have left?

• 1225

• 1500

• 2000

• 1000

In a school, there are 1,800 students. If 450 students are absent, how many students are present? Estimate the number of present students.

• 900

• 1350

• 1200

• 1500

A toy store had 2,000 toys. They sold 1,125 toys during a sale. How many toys are left in the store?

• 1,000

• 2,500

• 1,125

• 875

Lisa read 125 pages of a book on Monday and 175 pages on Tuesday. Estimate how many pages she read in total over the two days.

• 300

• 250

• 350

• 400

A concert hall has 3,000 seats. If 1,850 seats are filled, how many seats are still available?

• 900

• 1500

• 1150

• 1200

A zoo has 1,500 visitors on Saturday and 2,300 visitors on Sunday. Estimate the total number of visitors over the weekend.

• 3,800

• 3,200

• 2,500

• 4,000