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When you get two decimals how do you know where to put the decimal point in the product?
Wiki User
∙ 10y ago
- Count the numbers of digits after the decimal points (DP) in the two numbers.
- Add these numbers together.
- Calculate the product, including any trailing 0s.
- Place the DP so that the number of digits after the DP is the same as the sum of the digits after the DP (step 2).
Thus, for 15.38 * 0.0045
The first number has 2 digits after the DP, the second has 4, so sum of digits after DP is 2+4 = 6.
1538*0045 = 69210.
The answer must have 6 digits after the DP so you need to insert a 0 after the DP to make it .069210 which can then be simplified to .06921
Wiki User
∙ 10y ago
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How do you know if two decimals are equivilant?
Two decimals are equivalent only if everything from the decimal point to the last non-zero digit is the same in both of them. Additional zeros after that don't matter.
How you know the number of decimal places that should be in the product when you multiply two decimal number together?
If the two numbers have x and y decimal places respectively, then the raw product (before deleting and trailing 0s) has (x + y) digits after the decimal point.
How can estimating the product help you place the decimal point?
Ex: 52.73 x 384.12 Round to 50 x 400 = 20,000 so when you do the actual math you know that there are 5 places to the left of the decimal.
Upto how many decimal numbers roman numerals are available?
The Romans did not use decimals as we know them today but they did use fractions to a limited extent.
What is a decimal who's digits do not end and do not terminate?
When a decimals digits do not end it's called recuring and I don't know what terminate means so I don't know if this is the right answer for you. Hope this helped you!
How do you know where to put the decimal when multiplying decimals?
If two decimal numbers have x and y digits after the decimal point respectively, then their product has (x + y) digits after the decimal point.
How can i know the number of decimal places that should be in the product when you multiply two decimals numbers together?
If two numbers, P and Q, have x and y digits after the decimal point respectively, then P*Q has (x+y) digits after the decimal point.
How do you know if two decimals are equivilant?
Two decimals are equivalent only if everything from the decimal point to the last non-zero digit is the same in both of them. Additional zeros after that don't matter.
Why is it helpful to estimate the answer before adding or subtracting decimals?
It can be helpful for people who do not have a clue where the decimal point should go in the answer. For those who do know, the exercise is pointless.
How you know the number of decimal places that should be in the product when you multiply two decimal number together?
If the two numbers have x and y decimal places respectively, then the raw product (before deleting and trailing 0s) has (x + y) digits after the decimal point.
How would you right 329 micrograms in decimals?
If you know how to convert, then you should know the following: g->dg->cg->mg->->->micrograms So you move the decimal point 6 to the right if the given number is grams. Ans. 329,000,000
How do change decimals into percents?
If you would like to change a decimal into a percent, all you have to do is this: Move the decimal point over two places. Ex.: .125 = 12.5% Easy. I know. Another example: .75 = 75.0% or 75% (which is worth the same amount) You move the decimal two places to the right.
How do you know when to put the bar on a repeating decimal?
The bar is only used for repeating decimals. If it is repeating, you can use it.
What is the difference between decimal and fraction?
All decimals are worked in devisions of 10. Fraction can be a division of any number.
How can estimating the product help you place the decimal point?
Ex: 52.73 x 384.12 Round to 50 x 400 = 20,000 so when you do the actual math you know that there are 5 places to the left of the decimal.
What decimals are used as a half note?
I don't know all I here is that it can't be used as a decimal and it has none that sucks
Upto how many decimal numbers roman numerals are available?
The Romans did not use decimals as we know them today but they did use fractions to a limited extent.
