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When you multiply a decimal by 10 which way does the decimal point move?
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∙ 11y ago
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Wiki User
∙ 11y ago
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Which way do you move the decimal point when multiplying?
left
How do you multiply a decimal by a whole number?
This is my way of doing it:The first step is, you basically multiply like normal vertically. So for example, say you want to multiply 632 x .035 :632x .035---------3160+18960---------22120After you have done that, you simply count haw many numbers there are after each decimal point. In this case there is only one decimal point with 3 numbers after it. Let me first say that when you have a whole number, there will ALWAYS be an invisible decimal point at the end of the last number. With that in mind, you now know that there is an invisible decimal point at the end of 22120 which was the partial answer to the multiplication problem above. So now you add the decimal point and the zero to then end of your number(it's ok to have a zero at the end because that indicates nothing, you don't have to, but the point is necessary):22120.0 When you have this done, you will move the decimal point to the left however many spaces that equals how many numbers you had after the decimal point in total from the original numbers. So, above we said that there was three numbers after the decimal point in the number 0.035, so now you move the decimal point three spaces to the left in your multiplication answer:22120.0 ------> 22.1200 From here you can get rid of all the zeros after the decimal point, for they are not necessary in this step:22.12 That's the answer, and that is how you multiply a whole number x a decimal number.Hope I helped
What is nought point four multiplied by nine?
there is a simple way to do this, ignore the decimal point for now and multiply 9 by 4, 9x4=36, re-insert the decimal and you are left with 3.6 which is 9x0.4=3.6
What is a rule for multiplying and Dividing by powers of 10?
For positive powers: The rule is to move the digits in the place value columns left (for multiplication) or right (for division) the same number of columns as the power of 10. However, on paper this is not easy to do so the effect on the decimal point relative to the digits is used instead: move the decimal point the same number of digits right (for multiplication) or left (for division); if there are less digits than required to be moved, insert zeros until the decimal point has moved the required number of digits. If the power is negative reverse the direction of movement (eg with moving the decimal point, to multiply move the decimal point left and divide by moving the decimal point to the right).
How do you add 10 percent to a number?
The "easy" way is to move the decimal point one place to the left and add that new number to the original number. For example, take the number 42:42 (the decimal point is implied and is at the right side)4.2 (the new number)Add those two numbers to get 46.2.Another way is to multiply the number by 1.1, which is the same as 110%.
How do you turn decimal's into percent's?
If you have a decimal, move the decimal point two places that way ---> to get percent.
How do You FInd 5 percent of 190.50?
5% is 5/100. So you can divide by 100 by moving the decimal point 2 places to the left and then multiply by 5, or you can multiply by 5 first and then move the decimal point. Or you can divide by 2 and move the decimal point 1 place to the left. Either way, I get 9.525.
When multiplying or dividing by a power of 10 what is the shortcut?
Move the decimal point, the same number of places as the power of 10. That way ---> to multiply. This way <--- to divide.
How do you convert 0.62 into a percentage?
Either multiply it by 100, or move the decimal point two places to the right. Whichever way you think of it, you get 62 percent.
Change a fraction among decimals and percents?
If you have a fraction, divide the top by the bottom to get the decimal. If you have a decimal, move the decimal point 2 places that way --> to get the percent. If you have percent, move the decimal point 2 places this way <-- to get the decimal.
Which way do you move the decimal point when multiplying?
left
Which way did the decimal point move to get this answer?
Left or right.
What is 3.5 cm to mm?
1 cm = 10 mm, so multiply by 10. The easiest way to do this is to move the decimal point one place to the right...
What is eighty percent of two thousand?
The easy way to multiply a percent is to convert it to a decimal. Remember to go from percent to decimal we move the decimal point two places to the left.80% is .80 - Now take .80 and multiply it by 2000.2000x .80====00000160000======160000Now remember their is two decimal places so we need to move the decimals back in 160000.160000.16000.01600.00
How do you divide by 0.1?
Dividing by 0.1 is the same as multiplying by 10, and the simple way to multiply any whole number by 10 is to add a 0 on the end. If the number to be multiplied is shown with a decimal point, just move the decimal point one place to the left.
How would you convert centimeters to meters?
Take the number of centimeters, move the decimal point 2 places this way and you have centimeters.
How and which way do you move the decimal from liters to milliliters?
Converting from litres to millilitres you move the decimal 3 places to the right as the number is getting 1000 times bigger (multiply by 1000)
