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How does estimation help you place the decimal point when multiplying 3.9 x 5.3?
Wiki User
∙ 9y ago
4*5 = 20 so the answer should be around 20.
Wiki User
∙ 6y ago
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How can you use estimation to place the decimal point in the quotient 42.56 divided by 22?
44/22 = 2 so the decimal point should be placed after the first digit (which is a 1).
Why is it not necessary to line up the decimal point when multiplying two numbers?
Because the number of digits after the decimal place in a product does not require that.
When multiplying two factors that each have 1 place place the decimal point in the product how many places to the left?
It will be two places.
When multiplying decimals how do you determine where to place the decimal in the answer?
If the two multiplicands have X and Y digits after the decimal place then their product (before removing any trailing 0s) has (X+Y) digits after the decimal point.
When you are multiplying a decimal with 10 does the decimal point move left or right?
right
When multiplying two factors that each have 1 decimal place place the decimal point in the product places to the left?
two.
When multiplying two factors that each have one decimal place place the decimal point in the product how many places to the left?
Two places.
What is the difference between multiplying decimals and multiplying whole numbers?
You do the multiplication in exactly the same way. The only extra thing is that when multiplying decimals, you need to place the decimal point (or decimal comma - depending on your country) in the correct position. If one number has, for example, 3 digits after the decimal point, and the other 4, you need to place the decimal point in the result (BEFORE eliminating unnecessary zeros) in such a way that there are, in this example, 7 digits (3 + 4) to the right of the decimal point.
How can you use estimation to place the decimal point in the quotient 42.56 divided by 22?
44/22 = 2 so the decimal point should be placed after the first digit (which is a 1).
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
Why is it not necessary to line up the decimal point when multiplying two numbers?
Because the number of digits after the decimal place in a product does not require that.
What is 2.05 times 10?
20.5 when multiplying by ten move decimal point one place to the right
What does multiplying a decimal number by 100 do to the decimal point?
It moves the decimal point two places to the right.
When multiplying two factors that each have 1 place place the decimal point in the product places to the left?
It will be two places from the end.
When multiplying two factors that each have 1 place place the decimal point in the product how many places to the left?
It will be two places.
When multiplying decimals how do you determine where to place the decimal in the answer?
If the two multiplicands have X and Y digits after the decimal place then their product (before removing any trailing 0s) has (X+Y) digits after the decimal point.
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.
