Name:    Try It Out -- Chapter 6, Lesson 7

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.

1.

Calculate
- 8 - (-6) ¸ 2
 a. -1 c. -5 b. -11 d. 24

2.

Calculate
28 + (-3) ´ (-6) - 7
 a. -157 c. -325 b. 39 d. 143

3.

Calculate
12 ´ (-4 - [3 ´ (-5)])
 a. -33 c. 228 b. 255 d. 121

4.

Calculate
 a. -3 c. 3 b. d.

5.

Select the expression with brackets inserted, that results in the greatest possible value

20 ´ 3 - 2 ´ 3 - 5
 a. (20 ´ 3) - (2 ´ 3) - 5 c. 20 ´  [(3 - 2) ´ 3] - 5 b. 20 ´ (3 - 2) ´ (3 - 5) d. 20 ´ 3 - 2 ´ (3 - 5)

6.

Karen measures the temperature every day at 8:00 a.m. for one week. Calculate the average temperature for the week if the temperatures were:
4°C    -3°C    -7°C    -5°C    -4°C    5°C    3°
 a. 4.4°C c. -1.0°C b. -1.2°C d. 2.1°C

7.

There is an error in the solution shown.

5 ´ (-8) ¸ (-1 - 4) = -40 ¸ (-1 - 4)                  Step 1
= 40 - 4                            Step 2
= 44                                 Step 3
Select the statement which best describes the error.
 a. In Step 1, the value for 5 ´ (-8) is incorrect. b. In Step 2, the value of 40 should be - 40. c. In Step 2, the division was performed before the operation within the parentheses. d. In Step 3, the subtraction is incorrect.

8.

Calculate

 a. 5 c. 25 b. -5 d. -25

9.

Select the expression to complete the sentence.

“Order of operations with integers is ____  order of operations with whole numbers and decimals.”
 a. different than b. the same as

10.

Select the operations that must be inserted to make the equation true.

55 (-11) 7 (-8) = 51
 a. +  -   - c. ¸  +  ´ b. ¸  -  ´ d. ¸  ´  +