0
Explain the process of multiplying two decimal numbers together?
Wiki User
∙ 12y ago
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 :)
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What is the last step for multiplying decimal numbers?
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.
Explain how you know the number of decimal places that should be in the product when you multiply two decimal numbers together?
"You have to count the spaces to the right to know how many spaces you have to put."
What are methods that can be used to determine where to put the decimal point when multiplying?
move the decimal down and over however many numbers are behind the decimal
What does negative 5 in parantheses to the 2nd power equal and can you explain what it would mean without the parantheses is it the same thing?
(-5)2 = 25. This is because multiplying two negative numbers together always leads to a positive number. Think about it like taking a negative amount of negative numbers, which switches them over to positive numbers. -52 = -25, because you are not multiplying negative 5 by negative 5, you are multiplying 5 by 5, and then multiplying that value by negative 1.
What is the difference between multiplying and dividing?
when multiplying the numbers increase unless it is multiplied by a decimal, it will then decrease. when dividing the numbers are divided (splitted) therefor it decreases unless it is divided by a decimal, it will then increase. Decrease means 'gets smaller or less' Increase means 'getting bigger or more'
Explain how to multiply a whole number by a decimal in the hundredths?
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?
why does multiplying numbers by ten move the decimal point to the right
How is multiplying a decimal by a whole number the same as multiplying 2 whole numbers?
It is not. When multiplying two whole numbers you need not be concerned about placing the decimal point in the answer.
Why does multiplying numbers by 10 move the decimal to the right but multiplying numbers By .10 you move the decimal to the left?
0.10 = 1/10 so that multiplying by 0.10 is the same as dividing by 10.
When multiplying a decimal by a decimal multiply as with what numbers?
The answer depends on the decimal numbers: there is no simple answer if one (or both) of the decimals is a non-terminating number.
Why when multiplying two decimal numbers together you get a smaller number you multiplied?
That is not necessarily the case.2.5*4.3 = 10.75 which is larger than either of the numbers being multiplied.
What is the last step for multiplying decimal numbers?
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.
Product of two numbers?
Is the result of multiplying two numbers together.
Explain how you know the number of decimal places that should be in the product when you multiply two decimal numbers together?
"You have to count the spaces to the right to know how many spaces you have to put."
What is product of two numbers?
The product of two numbers is the answer to multiplying the two numbers together.
Why isn't decimal numbers aligned when multiplying decimals?
When multiplying decimals, the decimal points are not only not aligned they are completely removed from the numbers to leave a multiplication of whole numbers which is done. Then the decimal point is put back into the answer by counting how many digits in total were after the decimal points in the original numbers and making the answer have the same number of digits after the decimal point. Example: 1.23 x 45.6 → 123 x 456 = 56088 1.23 has 2 digits after the decimal point, 45.6 has 1 digit after the decimal point making a total of 2 + 1 = 3 digits after the decimal point in the question, so there must be 3 digits after the decimal point in the answer → 1.23 x 45.6 = 56.088 Second example: 1.25 x 3.4 → 125 x 34 = 4250 2 digits + 1 digit = 3 digits in total in question must be after decimal point in answer: → 1.25 x 3.4 = 4.250 but normally any zeros that come at the end of a number after a decimal point are not written, so this would normally be written as: 1.25 x 3.4 = 4.25 A decimal number is a whole number divided by a power of 10, that is 10, 100, 1000, etc. This means that a decimal number can be written as an improper fraction with a power of 10 as the bottom number. So for the first example: 1.23 = 123/100 45.6 = 456/10 Multiplying the decimals together is the same as multiplying the two fractions together, which is done by multiplying the top numbers together and multiplying the bottom numbers together: 1.23 x 45.6 = 123/100 x 456/10 = (123 x 456)/(100 x 10) = 56088/1000 = 56.088
How do you multiply a whole number by a decimal in the hundreths?
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.
