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Paige was measuring how much taller she got over two years. In the fiest year she grew 4.62 cm. In the second year she grew 7.7 cm. How much taller did she get altogether?

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you have two years:

year 1 she grows 4.62
year 2 she grows 7.7

The total growth is the sum of both years..

so 4.62+7.7=12.32
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