David used the computer a total of 45 hours last week. How many more did David use the computer to play games than to do
homework?

(23*2)-12=x     x=34

step-by-step explanation:

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

answer: the answer is d