What is 42.00 plus 13.23?

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Multiple Choice

What is 42.00 plus 13.23?

Explanation:
When adding decimals, line up the decimal points so each place value stacks under the same column. Then add from the rightmost place. For 42.00 and 13.23: - hundredths: 0 + 3 = 3 - tenths: 0 + 2 = 2 - ones: 2 + 3 = 5 - tens: 4 + 1 = 5 So the sum is 55.23. A quick check is to multiply each by 100 (4200 and 1323), add to 5523, then divide by 100, which also gives 55.23.

When adding decimals, line up the decimal points so each place value stacks under the same column. Then add from the rightmost place.

For 42.00 and 13.23:

  • hundredths: 0 + 3 = 3

  • tenths: 0 + 2 = 2

  • ones: 2 + 3 = 5

  • tens: 4 + 1 = 5

So the sum is 55.23. A quick check is to multiply each by 100 (4200 and 1323), add to 5523, then divide by 100, which also gives 55.23.

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