Download Common Core 7 PLUS Integers Quiz Study Guide

Common Core 7 PLUS Integers Quiz Study Guide- Answers
Write an integer to represent each of the following:
1. a temperature of 7 degrees below zero
-7
2. a debt of $55
-55
3. An increase of 80
80
What are the absolute values of the following numbers:
4.
│-7 – (–3) │ = 4
5. │-8 + -5│= 13
6. –│27 │ = -27
10. Write a word problem for -3 + 11.
Answers will vary. Example: The temperature was 3 degrees below zero at noon and raised 11
degrees by 3pm. What is the current temperature?
11. Draw a model of –6 – 7
Answers will vary. Students could use a number line or the “heaps and holes” model.
Evaluate the following:
12.
4 + −4 = 0
13. 18 – 50 = -32
14.
−22 + (−1 – 9) = -32
15. 43 – (−15) = 58
16.
(−2)(−13) = 26
17. 15(−15) = -225
18.
5 + 3 + (−2) + (−49) + (−29) =
19. −75 ÷ −15 =
-72
Evaluate each expression:
20.
56 – [22 – 3(4 – 2)] • 3 = 8
5
21. −7 + 9 – (−2) • 4 = 18
Word Problems:
31. Leslie is very interested in weather. With the help of Mrs. Molloy she is doing an
experiment on the affect of low temperatures on bacteria. She cools one sample of
bacteria to a temperature of 74°F and another to -8°F. What was the temperature
difference in the two experiments?
74 - (-8) = 82 degree difference
32. Write the largest integer you can use to write an equation with a product of -30?
30….30 x -1= -30