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What is the rule of division by a power of ten?
The rule is to move the digits of the number the same number of columns as the power of ten right in the place value table. As this is not easy with pencil and paper, the rule is usually expressed in how it affects the position of the decimal point in the number, which is: Move the decimal point the same number of digits as the power of ten to the left, inserting zeros if necessary. If the decimal point is not showing it is "hiding" after the units (or ones) digit at the right hand end.
What is the place value of 7 in 4795?
In the number 4795, the digit 7 is in the hundreds place. This means that the place value of 7 is 700. The place value of a digit is determined by its position in the number, with each place representing a power of 10 (ones, tens, hundreds, etc.).
How do you round 365.25637 to the nearest ten?
You look at the figure in the ones position. As it is a 5, the number is rounded up to give 370 as the answer.
Why are the units digit of any positive integer power of 5 will always be 5?
The units digit of any number is the number in the ones position. For example, the units digit of 123 is 3; 2324 is 4; and 87321 is one. The reason the answer is 5 for 5 raised to any positive integer is because 5 will always be in the units position. For example, 52 = 25; 53 = 125; 54 = 625; and so on.
How many ones make 76?
In the base-10 numbering system, the number 76 is composed of 7 tens and 6 ones. Therefore, there are 6 ones in the number 76. Each place value to the left of the decimal point represents a power of 10, with the rightmost digit representing ones, the next digit to the left representing tens, and so on.
