Compute 6.4 + 2.06.

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Multiple Choice

Compute 6.4 + 2.06.

Explanation:
When adding decimals, line up the decimal points and fill any missing places with zeros. Treat 6.4 as 6.40 to match two decimal places, then add: 6.40 2.06 ---- 8.46 From the right, hundredths: 0 + 6 = 6; tenths: 4 + 0 = 4; ones: 6 + 2 = 8. So the sum is 8.46. The other options don’t keep the hundredths place consistent, which changes the final digits.

When adding decimals, line up the decimal points and fill any missing places with zeros. Treat 6.4 as 6.40 to match two decimal places, then add:

6.40

2.06

8.46

From the right, hundredths: 0 + 6 = 6; tenths: 4 + 0 = 4; ones: 6 + 2 = 8. So the sum is 8.46. The other options don’t keep the hundredths place consistent, which changes the final digits.

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