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This is because we count in tens so that the place value of a digit is ten times the place value of the digit to its right.

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Q: When mulltiplying a number by 10 move the decimal to the right. When multiplying a number by 0.1 move the decimal to the left. Why?
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Related questions

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 a number by 10 move the decimal to the right. when multiplying a number by 0.1 move the decimal to the left. Why?

This is because we count in tens so that the place value of a digit is ten times the place value of the digit to its right.


When multiplying a number by 10, move the decimal to the right. When multiplying a number by 0.1, move the decimal to the left. Why?

This is because we count in tens so that the place value of a digit is ten times the place value of the digit to its right.


How do you align decimals when multiplying?

You do not need to align decimal points when multipylng. You multiply the two numbers ignoring the decimal point but ensuring that any trailins 0s are present. The number of digits after the decimal point in the answer is the sum of the number of digits after the decimal points in the two multiplicands.


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


What is the rule for multiplying a number by 10?

Simply add one ZERO to the end of the number. If the number is a decimal, then move the decimal point one postion to the right.


When you are multiplying a decimal with 10 does the decimal point move left or right?

right


What is the mathematical rule for multiplying by 10?

Multiplying a whole number by 10 adds a zero onto the end of the number. For example, 7 x 10 = 70.Multiplying a decimal number by 10 moves the decimal point one place to the right. For example, 3.75 x 10 = 37.5.


Which pattern describe how the decimal point moves when you multiply a decimal number by any power of ten?

Multiplying a real number by a positive power of ten moves the decimal point that number (the exponent) of places to the right. Multiplying by a negative power of ten moves it to the left. For example, the -3 power of 10 is 1/1000; multiplying by that moves the decimal point 3 places to the left.


What is it called when you move a decimal point to the right?

When you move a decimal point to the right you are multiplying a number by 10. For example, take 3.4. If you move the decimal point to the right you get 34. This is the same as: 3.4x10 = 34. Reversing this, you are dividing by 10 by moving the decimal point to the left. For example, take 73. If you move the decimal point to the right you get 7.3. This is the same as: 73/10 = 7.3. If you move a decimal point 2 spaces to the right, you are multiplying by 100, or more generally if you move the decimal point n spaces to the right, you are multiplying by 10^n.


How did you know if the decimal point is going to left or right?

It you are multiplying by a number greater than one (or, equivalently, dividing by a number less than one) then the decimal would either stay put or move to the right.


When multiplying two factors each one with a decimal place how many decimal places should the answer have?

You need to add up the number of digits to the right of the decimal to find the number of digits in the answer. If the first factor has 2 digits to the right of the decimal point and the second factor has 3, the final answer will have 5 digits to the right of the decimal point.