Estimating Sums and Differences

• A- 300

• B- 400

• c- 200

• d- 500

• w-200

• x-100

• y-1,600

• z-300

• B-1,300

• C-1,200

• D-1,000

• E-1,100

• K-900

• L-1,000

• M-1,100

• N-1,200

• 6,000

• 7,000

• 2,000

• 6,700

• 7,000

• 4,000

• 6,500

• 6,000

Estimate the sum of 478 + 610

Estimate the difference of 289 and 110

Estimate the difference of 1,006 and 909.

• 100

• 300

• 2,000

• 200

Estimate the sum of 49 and 61.