Page 276 - Basic College Mathematics with Early Integers

Vocabulary and Readiness Check

Use the choices below to fill in each blank.

round fraction whole number
improper mixed number
3
1. The number 5 is called a(n) .
4
3 3
2. For 5 , the 5 is called the part and is called the part.
4 4
3. To estimate operations on mixed numbers, we mixed numbers to the nearest whole number.
5 21
4. The mixed number 2 written as a(n) fraction is .
8 8

3.7 Exercise Set FOR EXTRA HELP

Objectives Graph each list of numbers on the given number line. See Example 1.
2 7 1 1 1 1
1. -2, -2 , 0, , - 2. -1, -1 , - , 3 , 3
3 8 3 4 4 4

5 4 3 2 1 0 1 2 3 4 5 5 4 3 2 1 0 1 2 3 4 5

1 4 1 3 1 9
3. 4, , -3, -3 , 1 4. 3, , -4, -4 , -
3 5 3 8 3 10

5 4 3 2 1 0 1 2 3 4 5 5 4 3 2 1 0 1 2 3 4 5

Objective Choose the best estimate for each product or quotient. See Examples 4 and 5.
11 1 1 5
5. 2 # 1 6. 5 # 3
12 4 6 7
a. 2 b. 3 c. 1 d. 12 a. 9 b. 15 c. 8 d. 20

2 9 3 8
7. 12 , 3 8. 20 , 4
11 10 14 11
a. 3 b. 4 c. 36 d. 9 a. 5 b. 80 c. 4 d. 16

Multiply or divide. For Exercises 13 through 16, find an exact answer and an estimated answer. See Examples 2 through 8.
2 1 5 1 3 2
9. 2 # 10. # 4 11. 7 , 1 12. 9 , 1
3 7 9 5 5 3

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