Fundamentals of Math
Fundamentals of Mathematics
Answer Key
Chapter 1 Practice 1.1
1. Reduced – Subtraction 2. Split – Division 3. Times more – Multiplication
4. More – Addition 5. Twice as many – Multiplication
Practice 1.2.1
Natural
Whole
Integer
Rational Irrational
Real
√
√
√
√
1.
−8
√
√
2.
≈ 3.14 …
√
√
√
√
√
√
3.
5
√
√
√
√
√
4.
0
1 2
√
√
√
5.
Practice 1.2.2 1. g 2. c
3. i 4. f
5. b 6. h
7. d 8. e
9. a
Practice 1.3
1. 1, 2, 3, 5, 7, 11, and 13 2. 2 × 2 × 3 × 5
3. 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120 4. 72, 144, 216, 288, 360
Practice 1.4.1 1. −7 2. −1
3. 9 4. −6
5. 15 6. −5
7. 4 8. 9
9. 4 10. 7
Practice 1.4.2 1. 10
2. 3
3. 18
4. −5
5. 0
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