How can you add subtract and multiply with decimals???

*add*

first lets take and example using 0.1 and 0.2

0.1

+0.2

=0.3

p/s : make sure the decimal points are alligned

*subtract*

we use the same rule as the above make sure the decimal point are alligned

0.2

-0.1

=0.1

*mutiply*

first vanish the decimal points

example 0.2 becomes 2.

if 0.9 becomes nine

then after you mutiply it, put the decimal point back where it should be

hope this helps! have a good day :)

check the picture below.

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64