A.6 Answers to Diagnostic Test and Self-Quizzes

Answers to Diagnostic Test

Section 1

  1. 28
  2. −24
  3. 29
  4. 48
  5. −4
  6. 19
  7. 4
  8. 18
  9. −14
  10. 7

Section 2

  1. 0
  2. 28
  3. −1
  4. 16
  5. 20
  6. 16
  7. −4
  8. 2
  9. 7
  10. 16

Section 3

  1. or
  2. 0.6
  3. 80%
  5. 0.336
  6. 48
  8. 32
  9. ¾

Section 4

  1. 4
  2. 5
  3. 24
  4. 6
  5. 6
  6. 12
  7. 7
  8. 12
  9. 6
  10. 2

Answers for Self-Quiz #1: Symbols and Notation

  1. 28
  2. 18
  3. −9
  4. −9
  5. 36
  6. 7
  7. −48
  8. 8
  9. 15
  10. 28

Answers for Self-Quiz #2: Order of Operations

  1. 19
  2. 2
  3. −4
  4. 4
  5. 3
  6. −5
  7. 20
  8. 30
  9. 12
  10. 213

A-7

Answers for Self-Quiz #3: Fractions

  1. ⅗
  3. ⅓ or or
  4. or ⅘
  5. ⅝
  9. or

Answers for Self-Quiz #4: Decimals

  1. 1.244
  2. 6.837
  3. 1.274
  4. or ½ or 0.5
  5. 0.41028
  6. or or 0.47
  7. or ⅕ or 0.2
  8. 0.07172
  9. 2.039
  10. 8.828

Answers for Self-Quiz #5: Percentages

  1. 45
  2. 17.6
  3. 31.5
  4. 18.4
  5. 34.8
  6. 5.12
  7. 91.25
  8. 18
  9. 154.56
  10. 18.87

Answers for Self-Quiz #6: Solving Equations with a Single Unknown Variable

  1. 6
  2. 46
  3. 11
  4. 5
  5. 6
  6. 160
  7. 13
  8. 8
  9. 4
  10. 42

A-8