Estimating Whole Numbers

Find the difference between 89,063 and 17,909.

Steven has 7,171 balloons for the parade. Adriana has 6,321 balloons for the parade. Approximately how many balloons do they have together? (Round to the thousands place)

• 13,492

• 13,000

• 14,000

• 13,500

Round 6,425 - 371

**Remember to round each number to the same place value.

• 6,054

• 5,700

• 6,000

Round to the nearest ten thousand. 67,234

• 60,000

• 67,000

• 70,000

• 70,200

Estimate 623 + 71

***Remember to round each number to the same place value.

• 694

• 690

• 670

• 770

6002 - 35

***Remember to round each number to the same place value.

• 5,960

• 5,972

• 7,037

Three rock samples have masses of 7,405 g, 972 g, and 4,549 g. A scientist estimates the total mass of the samples by rounding each mass to the nearest hundreds. What numbers will he add?

• 8,000, 1000, and 5,000

• 7,400, 1,000, and 4,500

• 7,410, 970, and 4,550

• 7,405, 972, and 4,549

Estimate the sum by rounding to the place value indicated: 4689 + 2469 to thousands.

Estimate the sum by rounding to the greatest place value.

152 + 269

Estimate the sum by rounding to the greatest place value.

639,069 + 283,136