How many ones are there in eight tens?

80.

Each unit is 10 times that of the previous unit. For example, 10 means 1 10, and 10 means 1 100. That is, how many ones are there in eight tens? The number of ones can be expressed by the mathematical formula =8× 10, and the calculation result is 80; That's eight out of ten and eighty out of one.

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