Estimate Sums to the Nearest 100

Estimate the sum of 327+431 by rounding to the nearest hundreds

• 700

• 600

• 758

• 800

Use compatible numbers to estimate the value of 76 + 26.

• 75 + 25 = 100.

• 80 + 30 = 110

• 76 + 26 = 102

• 70 + 20 = 90

Tracy ordered 325 pet toys and 165 bags of dog food for her new pet store. Which is the best estimate of the total number of items Tracy ordered?

• 400

• 500

• 600

• 700

Estimate to the hundreds place.
7,538 + 2,317 = 

• 9,800

• 9,900

• 9,855

• 520

Estimate to the nearest hundred: 642 + 212

• 800

• 900

• 850

• 854

Round to the nearest hundred, then estimate the sum:

123 + 456

• 580

• 600

• 650

• 500

Estimate to the nearest hundred: 109 + 688

• 700

• 750

• 800

• 900

Round to the nearest hundred, then estimate the sum:

123 + 456

• 580

• 600

• 650

• 500

To the nearest hundred, ABOUT how many books are in the library?

• 400

• 460

• 470

• 500

Estimate and add the following numbers.

784

345

843

• 1,900

• 10,000

• 1,000

• 1,972