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.
It moves three places to the right.
When you divide by ten the decimal point moves one place to the left.
The decimal point moves one place to the left when dividing by 10.
It the power is d, where d is a signed integer, the decimal point moves d place to the right.
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.
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.
Multiply it by 100. This moves the decimal point so that your answer is no longer in decimal form :)
It moves three places to the right.
It moves to the right because the decimal point moves to the left.
The decimal place "moves" one space to the left.
When you divide by ten the decimal point moves one place to the left.
One to one
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.
The decimal point moves one place to the left when dividing by 10.
What you are asking is not clear, but I think that you're asking, "Why do you use x10 with scientific notation (Correct me if I'm wrong). The x10 is used because if you multiply something by ten, the decimal place of the number moves one to the right. If you divide a number by ten the decimal place moves one to the left. The x10(to whatever number) is just an easier way to symbolize that decimal place moving
To change a number from standard to scientific notation, move the decimal point to create a number between 1 and 10. Count the number of places you moved the decimal point to get the power of 10. If you moved it to the left, the exponent is positive, and if you moved it to the right, the exponent is negative.
When you multiply by 100, the decimal moves two places to the right. For example, 2.554 x 100 = 255.4.