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When dividing by 10 the decimal point is moved one place to the?
Left
What is the rule when you divide by 10?
Move the decimal place of the number you are dividing by one place to the left.
Why can you move the decimal point when dividing?
If you move the decimal point the same direction and number of places for the dividend and the divisor, this accomplishes the same thing as multiplying (or dividing) a numerator and denominator by the same number (in this case it is a power of ten). Moving the decimal place to the right by one place effectively multiplies the number by 10, and moving the decimal place to the left by one place is the same as dividing the number by 10. Example: 12345.6 / 10 = 1234.56
How can i get a denominator of a decimal?
Count the number of digits after the decimal point. The denominator is 1 followed by the same number of 0s.So, for example, 12.0356 has 4 digits after the decimal place. Therefore the denominator is 10000, and the rational form is 120356/10000
What is 81 10000 as a decimal?
81 lots of 10000 equal 810000. And since a decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right, the required decimal representation is 810000.
