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What can you find how finding a whole number estimate before your multiply the decimal can help you make sure your decimal placement is correct?
Wiki User
∙ 6y ago
Not really.
If you are competent in using the basic operations of arithmetic (+ - * /) and follow the riles as these apply to decimal numbers then the decimal point will be correctly placed and finding a whole number estimate will only mean additional calculations which serve no purpose. On the other hand, if you are not that competent then how can you be sure that the whole number estimate that you find is accurate?
Wiki User
∙ 6y ago
Add your answer:
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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
When you multiply decimal by decimal does it decrease?
Yes.
To change a decimal to a percentage?
multiply the decimal by 100
How do you write 0.9 as a decimal equivalent to a decimal using thousandths placement?
0.9 in thousandths place = 0.900
What do you multiply by when you change a percent to a decimal?
You multiply by 0.01 = 1/100.
What are two methods for determining the placement of the decimal point in the product?
When you multiply decimals, the decimal point is placed in the product.
When you multiply by 100 you move the decimal places to the right?
Correct
Express 2.94 x 24.8 correct to one decimal?
To express the product of 2.94 and 24.8 correct to one decimal place, you would multiply the numbers and then round the result to one decimal place: 2.94 * 24.8 = 72.912 Rounding this to one decimal place, we get: ≈ 72.9
Justine correctly multiply the decimals 8.5 2.34 how can the product be correct without three decimal places?
19.89
How do you estimate a math problem?
To estimate, you round the number to the nearest 10 and add, subtract, divide, or multiply. If the number is a decimal (ex. 12.132), you would round it to 12, and then round that to 10.
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
When you multiply decimal by decimal does it decrease?
Yes.
How do you multiply by a decimal?
line up the numbers and decimals multiply regularly then bring the decimal down
What is .39 as a percent?
390% To change a decimal into a percentage, multiply the decimal by a hundred (or move the decimal point 2 places to the right) and add the percentage sign %. 3.9 × 100 =390.00% So the first answer above is also correct.
To change a decimal to a percentage?
multiply the decimal by 100
What is the rule of multipliying decimal?
One way is to multiply the numbers ignoring the decimal point. If the first multiplicand has d1 digits after the decimal point, and the second has d2 digits after the decimal point, then their product has (d1 + d2) digits after the decimal point.An alternative for the second stage is to estimate the answer to determine where the decimal point should go.
How do you multiply decimals with fractions?
Change the decimal into a fraction or the easier way is to turn the fration into a decimal, then multiply.
