Estimating Sums: Fun Rounding Word Problems for 4th Grade

A bakery made 245 cookies in the morning and 378 cookies in the afternoon. Estimate the total number of cookies made by rounding to the nearest hundred.

• 700

• 500

• 600

• 800

Lily has 123 marbles, and she buys 89 more. Estimate how many marbles she has now by rounding to the nearest ten.

• 180

• 200

• 210

• 220

A library has 456 books, and it receives a donation of 234 books. Estimate the total number of books by rounding to the nearest hundred.

• 600

• 800

• 700

• 500

Tom read 145 pages of a book last week and 267 pages this week. Estimate the total pages he read by rounding to the nearest ten.

• 420

• 380

• 450

• 400

A farmer harvested 312 apples and 489 oranges. Estimate the total fruit harvested by rounding to the nearest hundred.

• 800

• 900

• 600

• 700

Sarah has 275 stickers, and she gives away 48. Estimate how many stickers she has left by rounding to the nearest ten.

• 300

• 230

• 250

• 220

A toy store sold 198 toys in January and 305 toys in February. Estimate the total toys sold by rounding to the nearest hundred.

• 500

• 400

• 600

• 700

A school has 432 students and 289 more students enroll. Estimate the total number of students by rounding to the nearest hundred.

• 700

• 500

• 800

• 600

A zoo has 156 animals and acquires 87 more. Estimate the total number of animals by rounding to the nearest ten.

• 200

• 250

• 300

• 240

In a park, there are 245 trees and 378 bushes. Estimate the total number of plants by rounding to the nearest hundred.

• 600

• 800

• 500

• 700