Estimating Whole Numbers

Estimate the difference by rounding to the greatest place value.

242 - 179

Estimate the difference by rounding to the greatest place value.

Which is the best estimate for 817 + 259?

• 10,000

• 2,000

• 1,100

• 800

Estimate the difference by rounding to the greatest place value.

797 - 234

Estimate the difference by rounding to the greatest place value.

6152 - 3195

Estimate the sum by rounding to the greatest place value.

10,982 + 4,821

Estimate the product of 99 X 7

• 70

• 700

• 7,000

• 7

Estimate. 62 X 3=

• 180

• 210

• 150

• 240

Estimate. 834 x 10=

• 80

• 800

• 8,340

• 8,000

Estimate. 272 X 5=

• 1,000

• 1,300

• 1,500

• 2,000