1. adding decimals Adding decimals decimal point setting method, and then synchronizes the address number on the same principle. If the sum exceeds 9, the main forward like a decade to count sums. For example, 42.36 + 23.86 =? How to make the. The properties of the additive, such as switch 4.6 4.6 5.3 5.3 + = + = 9.9. Change the properties of the additive group, such as: (0.14 + 0.83) + 0.13 = 0.14 + (0.83 + 0.13) = 1.10.Adding decimals decimal a positive is positive. To take the absolute value and then add a positive reply. For example, you shall find the sum, 10.9 + 21.05. How to make 10.9 + 10.90 + 21.05 21.05 =. 10.90 + 21.05 31.95 Therefore, 10.9 + 21.05 = 31.95 Reply to 31.95
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