Express the answers to the following operation with the proper number of significant figures. 1.5+1.22

2.7

Explanation:

When adding significant figures, the answer is limited to the number of decimal places in the number with the least number of decimal places.

1.5 + 1.22 = 2.72

However, because 1.5 only includes a number in the tenths place, we must round the final answer to the tenths place, making it 2.7.

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