Estimating Sums and Solving Problems

• 90

• 100

• 110

• 120

If you have 123 apples and you buy 78 more, estimate the total number of apples you have by rounding to the nearest ten.

• 190

• 200

• 210

• 220

• 500

• 600

• 700

• 800

• 300

• 400

• 500

• 600

• 1,700

• 1,800

• 1,900

• 2,000

• 70

• 80

• 90

• 100

• 800

• 900

• 1,000

• 1,100

• 700

• 800

• 900

• 1,000

• 3,000

• 4,000

• 5,000

• 6,000

• 600

• 700

• 800

• 900