Question

1. Evaluate the following.

|11|=
|-4|=

2. Evaluate.
(-4)^3=
(-9)^2=

3. Fill in the blanks below.
• Maria”s tear score average increased by 10 points this semester. Write a signed number to represent this change in average.
• The population of a certain city decreased by 45,000 people. Write a signed number to represent this change in average.

4. Subtract.
-8-5=
3-6=

5. Evaluate.
3•3-((-1)^2-2)^2

6. The table gives the temperature (in F) in five cities at 6am. On the say day. Use the table to answer the questions.
City. Temperature
_____. ___________
Seattle 42
Montreal. -28
Buffalo -14
Miami. 84
Los Angeles 67

(a) How much higher was the 6am. Temperature in Seattle than in buffalo?

(b) by noon, the temperature in Buffalo had risen by 20 F. What was the temperature there at noon?

7. Add.
-7. 3
—— + —-
5. -2
Write your answer as a fraction in simplest form.

8. Use <, >, or = to compare the following numbers.
-2. -11
-8. -5
-9. 6

9. Subtract.
1. 1
—— - ——
9. 3
Write your answer in simplest form.

Answer 1

1. 11; 4

2. -64; 81

3. X+5; x+22,500

4. -13; -3

5. 8

6. 56F; 6F

7. -29/10 or -2 and 9/10

8. >; <; <

9. -2/9

Explanation:

Answer 2

1. 11; 4
2. -64; 81
3. X+5; x+22,500
4. -13; -3
5. 8
6. 56F; 6F
7. -29/10 or -2 and 9/10
8. >; <; <
9. -2/9