3.3 Introduction to integer subtraction
Introduction to integer subtraction
Some of us just want to make a difference in the world. Well, in this section, you will make a difference using mathematics! In this section, we will be subtracting negative and positive integers using subtraction statements. First, we will use diagrams to help us with our subtracting. Then, we will be given integers and asked to find the differences between them. Next, we will be given word problems and asked to solve the problems using subtraction statements. Finally, we will be given subtraction statements and asked to find the missing values in the statements.
Basic concepts:
 Comparing and ordering numbers
 Prime numbers and composite numbers
 Introduction to exponents
Related concepts:
 Adding and subtracting decimal numbers
 Order of operations (PEMDAS)
Lessons

1.
What subtraction statement does each of the following diagrams represent?
+1:
1: 
2.
Find the two differences between each pair of integers.

3.
Use integer subtraction to find the difference for the following situations.

4.
Find the missing values.