If both the dividend and divisor end in zeros, you can cancel the same number of trailing zeros from both — the quotient stays the same.
For example, 560÷70=56÷7: remove one zero from each, then it is familiar division.
That is the same as dividing both numbers by 10, 100, and so on, until at least one no longer ends in zero. Check with multiplication: quotient×divisor=dividend.
Matching trailing zeros in dividend and divisor can be canceled
The quotient matches the shortened pair
Ties to multiplying by round tens from the last lesson
If it divides evenly, the remainder is zero
One pair of zeros
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