Vertical calculation process analysis 28÷0.22

Solution: Divide every bit of the dividend from the high position, keep the quotient obtained by each calculation, and add the next bit to the remainder for operation. After all the digits of the dividend are operated in this order, the obtained quotients are combined in order, and the remainder is the result of the last operation.

Problem solving process:

Step 1: Because the divisor is not an integer, first convert the divisor into an integer of 22 and expand the dividend by the same multiple: 2800.

Step 2: 28÷22= 1 The remainder is: 6.

Step 3: 60÷22=2, and the remainder is 16.

Step 4: 160÷22=7 The remainder is 6.

According to the above calculation steps, the combined result is 127, and the remainder is 0.06.

Checking calculation: 127×0.22+0.06=28.

Extended data (check result): Four operation rules (calculation in sequence, first multiplication and division, then addition and subtraction, first parenthesis, first power), namely disjoint operation (recursive equation calculation), must be carried out on the premise of this principle.

Problem solving process:

127×0.22+0.06

=27.94+0.06

=28

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