To times two decimal numbers together you take the sum, lets say....
0.4 x 0.37
First you times the numbers without the decimals so this would be
4 x 37
Which equals 148
so now you have the answer, count how many numbers are after the decimal points in the actual oringinal problem.
This prblem has 3 decimal places.
so you move the decimal point from the end of the number 148 3 spots to the left
so the answer is 0.148
the whole thing will look like this
0.4 x 0.37 = 0.148
Hope this helps :)
To multiply decimal numbers, the decimal point is ignored and the multiplication is done as though they were (large) integers. The last step is to put the decimal point into the answer by ensuring the same number of digits follow it as were following the decimal points in the numbers multiplied together; trailing zeros can be removed at this point.
"You have to count the spaces to the right to know how many spaces you have to put."
move the decimal down and over however many numbers are behind the decimal
To find the product of 9.3 and 7.64, you would multiply these two numbers together. When you multiply 9.3 by 7.64, you get 70.932. This is the result of multiplying the whole numbers together and then adding the product of the decimal parts.
When multiplying, you move the decimal to the right. The number of places you move the decimal to the right is equal to the total number of decimal places in the numbers being multiplied. For example, if you are multiplying 2.5 by 3.2, you would move the decimal a total of three places to the right to get the final product.
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.
why does multiplying numbers by ten move the decimal point to the right
It is not. When multiplying two whole numbers you need not be concerned about placing the decimal point in the answer.
0.10 = 1/10 so that multiplying by 0.10 is the same as dividing by 10.
The answer depends on the decimal numbers: there is no simple answer if one (or both) of the decimals is a non-terminating number.
That is not necessarily the case.2.5*4.3 = 10.75 which is larger than either of the numbers being multiplied.
To multiply decimal numbers, the decimal point is ignored and the multiplication is done as though they were (large) integers. The last step is to put the decimal point into the answer by ensuring the same number of digits follow it as were following the decimal points in the numbers multiplied together; trailing zeros can be removed at this point.
To calculate 15.6 multiplied by 15.6, you would multiply the two numbers together. This would result in 243.36. The multiplication of two decimal numbers involves multiplying the numbers as if they were whole numbers, and then counting the total decimal places in the original numbers to place the decimal point in the final answer.
Is the result of multiplying two numbers together.
"You have to count the spaces to the right to know how many spaces you have to put."
The product of two numbers is the answer to multiplying the two numbers together.
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.