Rounding Then Adding

Estimate the sum by rounding each number to the nearest whole number and then adding.

7.114 + 6.122

The sum is approximately

Estimate the sum by rounding each number to the nearest whole number and then adding.

6.17 + 4.7

The sum is approximately

Estimate the sum by rounding each number to the nearest whole number and then adding.

8.598 + 2.78

The sum is approximately

Estimate the sum by rounding each number to the nearest whole number and then adding.

3.78 + 7.249

The sum is approximately

• 860

• 900

• 960

• 100

CHALLENGE QUESTION

• A

• B

• C

• D

• A

• B

• C

• D

Approximately how many balloons do they have together?

• 13,492

• 13,000

• 14,000

• 13,500

Round to the nearest thousand, then estimate the sum:

2,764 + 4,851

• 7,000

• 6,000

• 5,000

• 8,000

Round 12.87 to nearest ones place.

• 12.9

• 13

• 12.90

• 13.0