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What do you call a decimal whose digits do not go on forever?
A terminating decimal number.
Why do you move your decimal when multiplying?
"Moving the decimal point" is an easy way to accomplish some multiplications or divisions. If you have a number and you need to multiply it by 10, you should go through the process of multiplication as you've learned to do it, and then when you finish, LOOK at the product you've produced and SEE that it's the same as the original number but with its decimal point moved one place to the right. Then, forever after, you'll remember that if you need to multiply a number by 10, simply move its decimal point one place to the right, and your multiplication will be done. If you have a number and you need to divide it by 10, you should go through the process of division as you've learned to do it, and then when you finish, LOOK at the quotient you've produced and SEE that it's the same as the original number but with its decimal point moved one place to the left. Then, forever after, you'll remember that if you need to divide a number by 10, simply move its decimal point one place to the left, and your division will be done.
What number does 8 and 15 all go into?
120 (which can be found by multiplying 15 and 8)
Who to write decimal number?
To write a decimal you go to the end of the whole number 5 for example and then you put a period (5.) then you add the rest of the decimal like 5.6
Is 2.434434443 a rational number?
Yes, if the decimal doesn't go on forever, then it is a rational number.
