Download ch. 5 review answer key

Name:_____________________________________________
Per:________________
Chapter 5 Review Worksheet
1. What is the sign of the product of two negative numbers? Give an example.
Always positive -5 x -6 = 30
2. What is the sign of the quotient of two numbers with opposite signs? Give an example.
Always negative -30/ 5 = -6
3. What is the sign of the product of two numbers with opposite signs? Give an example.
Always negative 5 x -6 = -30
4. What is the sign of the quotient of two negative numbers? Give an example.
Always positive -30/ -6 = 5
5.
6.
7.
(
(
)
)
-49
(
(
8.
(
12.
(
18. (– 6) ÷ ___1___ = – 6
)
-6
19. 18 ÷ (– 3) = ____-6___
)
)
17. (– 7) ∙ ___8___ = – 56
36
-7
10.
16. ___-8___ ∙ (– 8) = 64
)
9.
11.
8
18
20. __-27___ ÷ ( – 3) = 9
21. ___12___ ÷ ( – 6) = – 2
-40
22. 36 ÷ ___-9___ = – 4
-7
23. – 15 ÷ __-5____ = 3
13. __9____ ∙ ___-5___ = – 45
24. ___0___ ÷ (– 7) = 0
14. (– 12) ∙ __-6____ = 72
25. (– 35) ÷ __-35____ = 1
15. ___-6___ ∙ __4___ = – 24
Describe the sign of each product. Positive or Negative?
26. The product of six negative integers: positive (even number multiplied- positive)
27. The product of a positive integer and – 5: negative (positive and negative always negative)
28. The quotient of nine negative integers: negative (odd number multiplied – negative)
29. The quotient of a negative integer and – 3: positive (two negatives always make a positive)
30. Write a fact family for 3, – 4, and – 12: 3 x -4 = -12 ; -4 x 3 = - 12; -12/ 3 = -4; -12/ -4 = 3
31.
+
= 5/4 = 1 1/4
37.
×
32.
+
= 9/8 = 1 1/8
38.
×
33.
+
39.
÷
= 20/15= 4/3or
÷
= 6/4 = 3/2 or 1 1/2
= 7/10
= 3/8
= 5/16
1 1/3
34.
–
= 2/4 = ¼
40.
35.
–
= 3/6 = 1/2
41.
36.
–
= 1/8
42.
×
÷
= 3/12 or ¼
= 10/8 =5/4 or 1 1/4
43. Madison had a birthday party. She invited 9 kids. The boys at her party ate 3 and ¾ a pizza. The
girls at her party ate 2 and 5/8 a pizza. How much pizza did they eat all together? If madison’s mom
ordered 10 pizza’s, how much pizza was left? 3 ¾ + 2 5/8 = 3 6/8 + 2 5/8 = 5 11/8 or 6 3/8 pizza eaten
10 – 6 3/8 = 3 5/8 pizza left