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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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โˆ™ 2018-03-31 16:51:37
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Q: 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?
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When you are multiplying a decimal with 10 does the decimal point move left or right?

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 do you move the decimal to the left or right?

to the right to right to the right to the right not to the left to left to left lol have an awesome life


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 are the roles of transferring the decimal point to the right or to the left?

Multiplying or dividing by ten.


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 you move a decimal to the left are you multiplying?

Yes, by a number between 0 and 1.


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 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?

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 do you move the decimal places to the right?

When you are multiplying a number by 10, you move the decimal point one place to the right. If you are multiplyingby 1,000, you move it 3 places to the right.You move the decimal point to the left when you are dividing by a multiple of 10.


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.


Which way do you move the decimal point when multiplying?

left


The number to the left of the decimal is the fraction The number to the right of the decimal is the whole number?

No. It is the other way round.


When is the number zero not significant?

When it is left of an integer and right of a decimal number


What is the number to the left of a decimal point called?

The number to the left of a decimal point is the integer part or the whole-number part. The part of a decimal to the right of the decimal point is the fractional part. The decimal point is called the decimal separator.


What are the 3 steps to multiplying decimals?

STEP 1:Take out the points and multiply as normal. STEP 2:After multiplying,count the numbers that are after the decimal points. STEP 3:Then look at your answer and put in your decimal places from the right to the left.


What is the rule for multiplying by 0.1?

Write the number out completely. Locate the decimal point. Move the decimal point left by one digit. You have multiplied the number by 0.1 Example: Multiply 293.56 by 0.1 Move decimal point left one position: 29.356


Why is the size of a decimal number not necessarily determined by the number of decimal places notated?

Digits after (to the right of) the decimal point contribute to the accuracy of the number, not its magnitude (or size). So only the digits to the left of the decimal point contribute to the magnitude. Digits after (to the right of) the decimal point contribute to the accuracy of the number, not its magnitude (or size). So only the digits to the left of the decimal point contribute to the magnitude. Digits after (to the right of) the decimal point contribute to the accuracy of the number, not its magnitude (or size). So only the digits to the left of the decimal point contribute to the magnitude. Digits after (to the right of) the decimal point contribute to the accuracy of the number, not its magnitude (or size). So only the digits to the left of the decimal point contribute to the magnitude.


Why does moving the decimal point in the divisor and the dividend when dividing by a decimal work?

Moving the decimal point one place to the right is the same as multiplying both, he numerator and the denominator by 10. That is, you are effectively multiplying by 10/10 which equals 1. And since multiplication by 1 does not change the result, it is OK to do that. Similarly, moving two palces to the right is multiplying by 100/100. Similarly moving left.


How is the way the decimal point moves when you divide a number by a power of ten the same as when you multiply?

It is not. For positive powers of ten, the decimal point moves to the right when multiplying and to the left when dividing. For negative powers of ten the point moves in the opposite directions.


What is similar about when you multiply decimals and divide decimals by a power of ten?

Both multiplication and division can be performed simply by moving the decimal point of the number: to the right if multiplying, to the left if dividing. E.g. for 10, you can move the decimal point by one place to perform the operation. Multiplication by 10: move decimal one place to the right (add zero if already a whole number). Division by 10: move decimal point one place to the left (one place in if a whole number).


Why Move the decimal point to the right when you multiply?

The reason is because you have to make the number bigger when you multiply. When you move the decimal to the right you make the number bigger, when you move it to the left you make it smaller. Therefore, when you divide you must move the decimal to the left.


When dividing do you move the decimal to the right or to the left?

The answer depends on the magnitude of the number by which you are dividing.


How do you write the standard number 5217000000 in scientific notation?

You move the decimal left or right until you end up with one digit in front of the decimal. Then, if you had to move the decimal to the left to get this number, you will have ten to the positive power of the number of decimal places moved. If you had to move the decimal to the right to get the number, you will have ten to the negative power of the number of decimal places moved. In this example, 5217000000 = 5.217 x 109


What is 364941 times ten to the eighth power?

36494100000000When you are multiplying a number by ten to the (blank) power, simply move the decimal point however many places to the right as the number of the power. If the number in the power is negative, move it to the left that many places

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