Name:    Try It Out -- Chapter 1, Lesson 8

Matching

Put each step in the correct order.

The rule for order of operations are:
 a. Add and subtract from left to right b. Calculate exponents and square roots c. Perform the operations in brackets d. Divide and multiply from left to right.

1.

What is the first step?

2.

What is the second step?

3.

What is the third step?

4.

What is the fourth step?

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

5.

Evaluate  [3 + (5 + 22)]2
 a. 144 b. 84 c. 24

6.

Evaluate  (4.25 + 2 ´ 8)2 - 2.12
 a. 2495.59 c. 405.653 b. 63.84 d. 405.863

7.

Evaluate:
3.5 + ´ 3.1 - 17.35 ¸ 3
 a. 41.233 b. 135.267 c. 127.917

8.

Evaluate
7 + + (5 + 2 ´ 4)3
 a. 2240 b. 21995 c. 82 d. 560

9.

Select the expression that matches the instructions.

Square 7.2, subtract 3.2 from this number, divide the difference by 7, then square the quotient.”
 a. 7.22 - 3.2 ¸ 72 b. (7.22 - 3.2 ¸ 7)2 c. [(7.22 - 3.2) ¸ 7]2

10.

The following formula can be used to determine the training heart rate for high fitness levels.

high fitness training heart rate = 0.75 ´ (220 - age + resting heart rate)

Determine the high fitness training heart rate of a 15 year old with a resting heart rate of 73.
 a. 223 b. 208.5 c. 99