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Earn +20 ptsQ: Why do you line up the decimal numbers?
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How do you multiply by a decimal?
line up the numbers and decimals multiply regularly then bring the decimal down
Why it is important to line up decimal numbers by their play value when you add or subtract them?
This is true for adding and subtracting ALL numbers, not just decimal representations.
Is it true when multiplying decimal numbers you must line up the decimals in the two numbers being multiplied?
No, it is not true.
What do you need to line up decimal points before comparing and ordering numbers with decimals?
You do not, but it is easier.
Why can it help to line up the decimal points before comparing and ordering numbers with decimals?
Lining the numbers up makes it easier to spot 0s between the decimal point and the leading non-zero digit.
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