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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.
When a number is divided by 100 the digits move?
The digits should stay where they are. The decimal point should move 2 places to the left.
When writing a number in scientific notation how may digits should be to the left of the decimal point?
There should be exactly one digit.
When writing a number in scientific notation how many digits should be left on the decimal point?
Only on digit may be to the left of the decimal point. The mantissa must be a number in the interval [0, 10).
Do you move the decimal point to the left when multiplying numbers?
You don't move the decimal point at all. You just multiply the numbers and the point should sort itself out or be put of how many digits it is to be.
