Addition and subtraction of whole numbers

OpenStax

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1 Section overview

2 Numbers and numerals

4 Practice set a

5 The hindu-arabic numeration system

6 The base ten positional number system

8 Practice set b

9 Whole numbers

10 Graphing whole numbers

11 Sample set c

12 Practice set c

Reading and writing whole numbers

Rounding whole numbers

Addition of whole numbers

Subtraction of whole numbers

1 Section overview

3 Subtraction as the opposite of addition

5 Practice set a

6 The subtraction process

8 Practice set b

9 Subtraction involving borrowing

10 Sample set c

11 Practice set c

12 Sample set d

13 Practice set d

14 Borrowing from zero

15 Sample set e

16 Practice set e

17 Sample set f

18 Practice set f

20 Sample set g

21 Practice set g

23 Exercises for review

Properties of addition

Summary of key concepts

Exercise supplement

Proficiency exam

Source: OpenStax, Fundamentals of mathematics. OpenStax CNX. Aug 18, 2010 Download for free at http://cnx.org/content/col10615/1.4

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