Appendix B: Answers to Practice Questions

The answers to a practice questions that are provided in video walk-throughs have been duplicated here for easy reference.

Whole Numbers

Chapter 1: The Place Value System

Question 1

3 = hundred millions
8 = ten millions
5 = millions
9 = hundred thousands
2 = ten thousands
2 = thousands
1 = hundreds
0 = tens
2 = ones

Question 2

2 = ten billions
0 = billions
4 = hundred millions
3 = ten millions
3 = millions
8 = hundred thousands
7 = ten thousands
6 = thousands
0 = hundreds
1 = tens
1 = ones

Chapter 2: Adding Whole Numbers

Question 1

[latex]97+74=171[/latex]

Question 2

[latex]128+456=584[/latex]

Chapter 3: Subtracting Whole Numbers

Question 1

[latex]94-62=32[/latex]

Question 2

[latex]434-78=356[/latex]

Chapter 4: Multiplying Whole Numbers

Question 1

[latex]522\times196=102,312[/latex]

Question 2

[latex]647\times381=246,507[/latex]

Chapter 5: Dividing Whole Numbers

Question 1

[latex]130÷8=16\dfrac{1}{4}[/latex]

Question 2

[latex]684÷12=57[/latex]

Fractions

Chapter 7: The Basics of Fractions

Practice Question A

[latex]\dfrac{27}{8}[/latex]

Practice Question B

[latex]5\dfrac{2}{3}[/latex]

Question 1

[latex]\dfrac{5}{6}[/latex]

Question 2

[latex]\dfrac{2}{3}[/latex]

Chapter 8: Adding and Subtracting Fractions

Question 1

[latex]\dfrac{13}{16}[/latex]

Question 2

[latex]\dfrac{5}{16}[/latex]

Question 3

[latex]1\dfrac{3}{8}[/latex]

Question 4

[latex]4\dfrac{3}{8}[/latex]

Question 1 (Mixed numbers)

[latex]11\dfrac{1}{2}[/latex]

Question 2 (Mixed numbers)

[latex]6\dfrac{5}{16}[/latex]

Question 3 (Mixed numbers)

[latex]7\dfrac{3}{8}[/latex]

Question 4 (Mixed numbers)

[latex]\dfrac{11}{16}[/latex]

Chapter 9: Multiplying Fractions

Question 1

[latex]\dfrac{3}{14}[/latex]

Question 2

[latex]\dfrac{10}{33}[/latex]

Question 3

[latex]35\dfrac{1}{16}[/latex]

Question 4

[latex]65\dfrac{53}{63}[/latex]

Chapter 10: Dividing Fractions

Question 1

[latex]2[/latex]

Question 2

[latex]1\dfrac{17}{22}[/latex]

Decimals

Chapter 13: Compare and Round Decimals

Question 1

[latex]\text{b. }27.54[/latex]

Question 2

[latex]\text{a. }14.001[/latex]

Question 1 (Rounding)

[latex]27.72[/latex]

Question 2 (Rounding)

[latex]14.756[/latex]

Chapter 14: Convert Decimals to Fractions

Question 1

[latex]\dfrac{181}{500}[/latex]

Question 2

[latex]\dfrac{963}{1000}[/latex]

Question 1 (Convert feet)

[latex]9.1234'\text{ or }9'\text{ }1\dfrac{1}{2}''[/latex]

Question 2 (Convert feet)

[latex]\dfrac{11}{16}\text{ inches}[/latex]

Chapter 15: Convert Fractions to Decimals

Question 1

[latex]2.21'[/latex]

Question 2

[latex]2'[/latex]

Percentages

Practice Question

[latex]26.7\%[/latex]

Question 1

[latex]70\%[/latex]

Question 2

[latex]80\%[/latex]

Question 3

[latex]20\%[/latex]

Chapter 19: Finding the percentage of a Given Number

Question 1

[latex]84.73[/latex]

Question 2

[latex]1503.84[/latex]

Chapter 20: Change as a Percent and Percent Change

Question 1 (Change as a percent)

[latex]83\%[/latex]

Question 2 (Change as a percent)

[latex]17.3\%[/latex]

Question 1 (Percent change)

[latex]48\text{ plants}[/latex]

Question 2 (Percent change)

[latex]30\text{ touchdowns}[/latex]

 

 

 

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Math for Trades Volume 1 by Chad Flinn and Mark Overgaard is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

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