Asingle box of thumb tacks weighed 3 1
⁄2 ounces. if a teacher had 4 1⁄7 boxes, how
much would their combined weight be?

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.