Yes you do that is very important when doing a decimal problem.
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It is important for other basic binary operations but NOTmultiplication.
Line up the numbers in such a way that the decimal points are aligned. . Example: 567.89 - 23.4 567.89 - 23.4 ===== 544.49
Multiplying a 4 and 15 will result in 60. You just have to convert both factors into decimals.
Because the number of digits after the decimal place in a product does not require that.
Do u think I know I am asking it please hel
Two decimals that can be rounded to 4.09 are 4.085 and 4.086. When rounding to the nearest hundredth, both of these decimals round up to 4.09.
No, it is not necessary. But it does help to be tidy.
you only line the decimals up when you are subtracting or adding not when you are multiplying im not sure about division...
No, it is not true.
1. When adding, the decimals MUST line up: 012.3 +32.1 2. When multiplying, you dont have to put the decimals side by side: 12.3 x323.55 Then you count how many numbers are after the decimals, which, in this case, is three. Hope it helped!
Hey awesome Question. The answer is no you do not have to line up the decimals when multyping only when adding and subtracting. The main thing is when you multiply make sure you put the decimal in the right place in your answer. YOu count how may places their are behind the decimals in BOTH numbers then you make sure their are that many places behind the decimal in you answer. :)
why do they move the decimals when multiplying
line up the decimals together
no
no.
Yes.
Fractions and decimals are usually rational numbers. Besides, multiplying rational and irrational numbers is also similar.
You need to line up decimals for additional and subtraction. For multiplication, you don't need to line them up - in fact, it would serve no useful purpose.