**Subtracting with Positive and Negative Integers**

## Subtraction is lame,

Keep the first number the same.

Avoid all the fuss,

Change minus to plus.

It will be fine,

After we change the next sign.

**Finding Percent Change**

## Find the old and find the new,

Take the difference between the two.

Divide by the old amount you would have spent, Times by 100 to make a percent.

Advertisements