## Kevin’s Work

## Work Time

# Kevin's Work

Kevin simplified 10 − (6 + 9), but he made a mistake.

10 − (6 + 9) = 10 − 6 + 9

= 4 + 9

= 13

- What is Kevin’s error?
- What is the correct value of the expression?

## Hint:

If you work within the parentheses first and add 6 + 9 and then subtract this sum from 10, what answer do you get?