Multiply and divide integers

With practice included

1. Multiplying and
Dividing Integers
By: Mrs. Young & Andrea
Bonde

2. Rules
•When multiplying and dividing
integers there are two rules:
1.When multiplying or dividing
integers that have the SAME sign,
the answer is POSITIVE.
•Positive x positive = positive
•Negative x negative = positive
+7 x +12 = +84
-6 x –5 = +30

3. Rules continued…
•Rule 2:
–When multiplying or dividing integers
whose signs are DIFFERENT, the
answer will always be NEGATIVE.
•Positive x negative = negative
•Negative x positive = negative
+8 x –4 = -32
-5 x +7 = -35

4. Let’s Practice!
What sign would the answer have in
front of the integer???
-5 x -7 = ???

5. POSITIVE!!!

6. How about…
-6 x 9 = ???
What sign will be in front of the answer??

7. NEGATIVE!!!

8. Try this one!
What sign will be in front of the
answer???
-81 ÷ +9 = ???

9. NEGATIVE!!!

10. Let’s solve some
problems!
-8 x –9 =

11. +72

12. +4 x +12 =

13. +48

14. -45 ÷ +5 =

15. -9

16. -63 ÷ +7 =

17. -9

18. -8 x –11 =

19. +88

20. Remember…
•When multiplying and dividing
integers:
Same signs = a positive
Different signs = a negative

21. Practice Easy!

22. Practice Easy!

23. Practice Medium!

24. Practice Medium!

25. Practice Hard!

26. Practice Hard!