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Vertical calculation of RMB exchange in the first volume of the fifth grade of primary school 12.5÷0.8 1
12.5÷0.8 1 vertical:

Firstly, the divisor is expanded by 100 times, and the decimal point is removed to make it an integer.

Dividends have also been enlarged by 100 times.

Extended data

Attention should be paid to vertical calculation

(1) number alignment;

(2) from the unit;

(3) Decimal one.

Multiply one digit of the transition number vertically by 2. If you need to carry, enter 1 in front, then this unit number will be increased by ten digits, and so on, and this unit number will be added with new operands.

In the vertical calculation of arithmetic square root, because each complement needs to add two digits, when the root number is more than one digit, it is necessary to ensure that the complement can not be sandwiched with decimal points. For example, three digits must be operated separately from hundreds, and ten digits and one digit are added when complement is added.