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Q: How is multiplying by a decimal by 100 similar to multiplying a whole number by 100 How is it different?

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they aren't that different but the whole number needs to be converted for them to be the same

Multiplying 6.7 and 5.5 is the same as multiplying 0.67 and 55, or 67 and 0.55.

The difference is that if you multiply with a whole number and then multiply with a decimal and you compare.You will notice the whole number is greater.You are very welcome.

Because

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It is not. When multiplying two whole numbers you need not be concerned about placing the decimal point in the answer.

There is almost no difference. The only difference is placing the decimal point.

It moves the decimal point two places to the right.

When multiplying a whole number by a decimal with two places, ignore the decimal point and multiply as if you were multiplying two whole numbers. After you get the answer, re-insert the decimal point so that the product has two decimal places.

Dividing a decimal by a whole number is the same as multiplying the decimal by the whole number's reciprocal. Convert that fraction to its decimal equivalent and proceed.

A decimal and a fraction can both express the same number, they are just written in a different format.

When multiplying a whole number by a decimal with two places, ignore the decimal point and multiply as if you were multiplying two whole numbers. After you get the answer, re-insert the decimal point so that the product has two decimal places.

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