Question

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

Answer 1

*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 :)

Answer 2

Put the numbers in a vertical column aligning the decimal points.
Subtract each column, starting on the right and working left. ...
Place the decimal point in the answer directly below the decimal points in the terms.
Check the answer by adding.
Hope this helps!