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Math OER
 McKeague and Pawlik Textbook Homework 

Textbook cover

Textbook problems are a great way to start practicing new math skills. Build the habit of asking yourself if each answer you get is reasonable. Check your answers so you do not practice bad habits.

While you do these problems, review your own notes. Where are they missing an example problem? Where can you improve an explanation? Fix up any weak spots in your notes. Make flashcards if those help you.

This page has a list of recommended odd-numbered textbook problems. This list is designed for a hypothetical student with a "typical" math background. If your math foundation is weak, do even more odd-numbered problems. If your math foundation is strong, do fewer.

These odd-numbered textbook problems have an answer key. Find it by clicking on "Supplements" on the right side of the screen, and then picking "Selective Answers".

Selective Answers

If possible, do homework with others. Students who participate in study groups almost always pass the class. You can ask your instructor to help students find study groups.

This gray font marks review topics from Math 10.

Shapeshifting Homework

Rounding

Decimal Accuracy

Section R.1 (page 9) # 13, 15, 17, 59, 61, 63, 77

Section 4.1 (page 299) # 17, 19, 21, 27, 29, 31, 33, 35, 49, 55, 57, 59, 69, 71

Estimating

Section R.3 (page 25) # 9, 11, 13, 23, 25, 27, 33, 35, 39, 59, 63

Fraction Format

Thinking About Division

Section R.6 (page 66) # 35, 37, 39, 41, 43, 45, 77, 79

Section 2.1 (page 152) # 77, 79

Section 2.5 (page 191) # 73, 87

Divisibility and Factors

Section 2.2 (page 161) # 9, 11, 13, 15

Desired Denominators

Section 2.1 (page 152) # 31, 33, 35, 37, 47, 49, 51, 65

Section 2.2 (page 161) # 17, 19, 23, 37, 39, 41

Decimals and Fractions

Section 4.5 (page 340) # 1, 3, 5, 9, 11, 23, 25, 27

Ratios and Rates

Section 5.1 (page 371) # 1, 3, 5, 11, 13, 15, 17, 21, 23, 29

Section 5.2 (page 378) # 1, 3, 5, 7, 11, 13, 17, 19, 21, 29

Percent Format

Decimal Point Scoots

none

Four Replacements for %

Section 6.1 (Page 416) # 1, 3, 5

Percents, Decimals, and Fractions

Section 6.1 (Page 416) # 11, 13, 15, 17, 25, 31, 33, 35, 37, 41, 43, 45, 49, 59, 61, 63, 65

Measurement

Units and Their History

none

One Step Conversions

Section 7.1 (Page 471) # 1, 5, 7, 9, 11, 31

Section 7.3 (Page 488) # 1, 5, 11, 31, 39, 41

More about SI Prefixes

Section 7.1 (Page 471) # 15, 19, 21, 23, 27, 39

Section 7.3 (Page 488) # 15, 17, 21, 25, 29

Exponents and Square Roots

Section R.7 (Page 71) # 11, 13, 15, 19, 21

Section 2.2 (Page 163) # 81, 83

Section 4.7 (Page 350) # 1, 3, 5, 7, 9, 11, 29

Section 7.2 (Page 481) # 1, 3, 11, 15, 29

Section 10.1 (Page 599) # 23, 29


Mad Science Homework

Fractions

Fraction × and ÷

Section 3.5 (Page 275) # 1, 3, 5, 7, 9, 47 (not about fractions, but about writing expressions)

Section 2.3 (Page 171) # 1, 3, 7, 11, 13, 21, 27, 29

Fraction + and −

Section 2.5 (Page 181) # 1, 5, 9, 13, 15, 21, 23, 27, 29, 33, 35, 39, 47, 51, 55

Mixed Number Subtraction

Section 2.8 (Page 212) # 1, 5, 7, 9, 13, 29

Order and Terms

Section R.7 (Page 71) # as much of 27-73 odd as helps you, 77, 79, 81, 83

Section 2.3 (Page 172) # 31, 43, 45, 47, 49

Goeswith Chains

none

Percentages

Percent Of

none

Percent Change

Section 6.5 (Page 447) # 1, 3, 9, 11, 13, 15, 17

The One Plus Trick

none

Simple Interest

Section 6.6 (Page 451) # 1, 3, 7, 9, 11

Measurement

Unit Analysis

Section 7.1 (Page 471) # 13, 41, 43, 45, 47, 49, 51

Section 7.2 (Page 482) # 55, 59, 65

Section 7.3 (Page 488) # 35, 39, 41

Polygon Perimeter and Area

Section 2.3 (Page 173) # 59, 61, 63

Section 8.1 (Page 520) # 1, 3, 5, 7, 9, 11, 13, 35, 37, 39

Section 8.2 (Page 529) # 1, 3, 5, 7, 17, 19, 21

Circle Circumference and Area

Section 8.1 (Page 520) # 15, 17, 21, 23

Section 8.2 (Page 529) # 13, 31, 37


Justice Homework

Fractions

One Step Equations

Section 3.4 (Page 264) # 47, 49

Section 3.4 (Page 263) # 5, 7, 31, 35, 45, 53 (officially too hard for Math 20, but you can do these!)

Section 3.5 (Page 275) # 11, 21, 23, 37

Section 3.5 (Page 275) # 29, 31 (officially too hard for Math 20, but you can do these!)

Proportions and Cross Multiplying

Section 3.4 (Page 263) # 39 (can you re-write this as a one step equation, instead of treating it as a proportion?)

Section 5.3 (Page 381) # 1, 3, 5, 7 (do not worry about this book's jargon words "means" and "extremes")

Proportions with Variables

Section 5.3 (Page 381) # 9, 11, 13, 15, 21, 23, 25, 31, 33, 35, 43, 51, 53

Proportion Word Problems

Section 5.4 (Page 391) # 1, 3, 5, 7, 9, 13, 19, 21

Scale Factors

Section 5.5 (Page 399) # 1, 3, 5, 7, 9, 17, 19, 23, 25, 27, 31

Percentages

Percent Sentences

Section 6.2 (Page 427) # 1, 3, 5, 9, 11, 13, 17, 19, 25, 27, 29, 31, 3, 35, 37, 45

Percent Word Problems

Section 6.3 (Page 434) # 1, 3, 5, 7, 9, 19, 21

Section 6.4 (Page 440) # 3, 5, 7, 9, 11, 15, 17

Measurement

Temperature

Section 7.4 (Page 497) # 23, 25, 51

Area Puzzles

Section 8.2 (Page 529) # 9, 11, 15, 23, 29, 35

Variables and Negatives

Section 1.1 (Page 89) # 3, 5, 7, 75, 77, 79

Section 1.2 (Page 101) # 3, 5, 11, 13, 39, 47

Section 1.3 (Page 108) # 5, 7, 9, 11, 33, 35, 37, 41, 51, 53, 61