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2 + 3 = 5 so 2 tens + 3 tens is 5 tens so 20 + 30 = 50 Think about these: 3 + 4 = ? 5 + 3 = ? 6 + ? = 8 30 + 40 = ? 50 + 30 = ? 60 + ? = 80 How many sports balls in total?
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01/12/2021 13:40
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