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To multiply two digit decimal numbers, multiply the numbers as you would without the decimals. To put the decimal in the answer, count the number of decimal places in the two numbers and put the decimal in the answer that many places to the left. For example:
5.12 x 6.35 = 32.5120.
If the numbers were 51.2 x 63.5, the answer would be 3251.20.
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Why do numbers get smaller when multiplied by a decimal?
It's because decimals are really fractions and all numbers get smaller when you multiply them by fractions.
How do you multiply two decimal numbers together?
Pretend there are no decimal points, and multiply the numbers together. Then count over (from the right) the number of decimal points of the two numbers combined. For example: 3.4 * 0.185 = 0.6290 34 * 185 = 6290. There is one number to the right of the decimal point in 3.4, and three to the right in 0.185. One plus three is four, so starting from 6290. you move over four places.
When you multiply decimal by decimal does it decrease?
Yes.
Do you multiply 2.9 percent x 100 to get the decimal?
whenever you multiply a whole number by a decimal you get a decimal. 2.9x100=290
How do you change 4 over 5 to decimal?
Multiply both numbers by 20 to read 80/100... 80/100 = 0.80
