Question

Decimals- do i move the decimal when adding or multiplying

Answer 1

Answer:

when adding you just line the decimals up like this, let's say you had to add 1 to 2.58.

2.58

+ 1 .00

3.58

when multiplying you might have to move it, say you had to multiply 1.5 by 2.2. (you don't have to line up the decimals like with addition)

1 .5

× 2.2

30

+ 300

3.30

1.5 has one decimal place and 2.2 also has one decimal place so you put those 2 decimal places in your answer.

sorry if this is a bit confusing lol