Home > MC1 > Chapter 3 > Lesson 3.4.3 > Problem 3-118
3-118.
Find the value of each expression. Change any subtraction problem to an equivalent addition problem and draw it with + and − pieces.
5 − 7
−5 + (−7)
−5 + 7
−5 − (−7)
The equivalent addition problem is 5 + (−7).
A drawing should look something like this:
− − − − −
− − − − − − −
2
Remember to draw your diagram.
How can you take away 7 negatives from 5 negatives?
Draw an integer tile diagram. You will need to add some zero pairs.