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Lesson 1: Integers and Numbers
3 Add & Subtract Integers < Back | Next >
To add integers you simply move from one number the required number steps in a positive direction.
Example

2 + 3 means you start at the number 2 and move 3 in the positive direction
So our answer would be 5

This process is the same if we have a negative value as well.

Example

-3 + 6 means you start at -3 and count 6 steps in the positive direction
So your answer will be 3

To subtract integers you simply need to remember that subtracting an integer is the same as adding it’s opposite.

Example

5 – 6 = 5 + (-6) = -1
9 – 4 = 9 + (- 4) = 5

Or

-6 – (-3) = -6 + (3) = -3
-8 – (-4) = -8 + (4) = 4

LESSON 1
1 Introduction to Numbers
2 Integers & Whole Numbers
3 Add & Subtract Integers
4 Multiplication of Integers
5 Integer Division
6 Properties of Numbers
7 Types of Real Numbers
8 Order of Operations
9 Roots and Powers
10 Multiply/Divide Exponents
11 Raising to a Power
12 Roots and Radicals
13 Scientific Notation & Approx
14 Accuracy & Precision
15 Operations w/ Approximate
16 Scientific Notation
< Back | Next >

 

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