80 + 90 = 10
20 + 70 = 90 50 + 50 = 100
3 tens and 8 tens together
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ten
hundred
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7 tens and 6 tens together
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9 tens and 4 tens together
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30 + 80 = 110
70 + 60 = 130
90 + 40 = 130
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That answer this correct, the one that the person gave before me
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