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When we want to multiply two numbers , such as 0.12 x 11.0, the following rules apply:
Notice that in multiply, you didn't have to go through all that shifting. The rules for multiplication are a lot shorter than those for add as far as the computer hardware designers are concerned . Integer multiplication is a lot slower than integer addition. In floating point, multiplication speed is a lot closer to that of addition. To divide numbers like 100.0 by 30.0, we must perform the following steps:
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