Anything multiplying by "0" can be simplified down to zero.

任何乘以“0”的运算数都可以被简化成零。

youdao

Anything multiplying by "1" can be simplified down to the non-zero operand.

任何乘以“1”的运算数都可以被简化成非零运算数。

youdao

You can reduce the amount in pounds to new pence by quite simply multiplying by 100.

把英镑换算成新便土，只要把英镑数乘以100就行了。

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Take for instance squares, that is the numbers produced by multiplying numbers by themselves.

BBC: The secret of squares revealed

By combining data from the two steps an equation linking mechanical power (dependent on mass) to electrical power (calculated by multiplying voltage by current) can be derived.

ECONOMIST: Weighing a kilogram

Moreover, Mr Breivik's prophecies of conquest by multiplying is confounded by rapidly falling immigrant birth rates.

ECONOMIST: Norway after terrorism