Adding Integers Test #3

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In this section, we dig deeper into the topic of integers. We will begin with adding integers. How do we add two or more integers together? There are two scenarios to consider:

Adding Integers with the Same Sign:

1) Add the absolute values of the numbers: 2 + 4 = 6

2) Attach the common sign to the answer: the common sign is "-", so we end up with -6

(-2) + (-4) = -6

Adding Integers with Different Signs:

1) Subtract the smaller absolute value from the larger: 5 - 3 = 2

2) Attach the sign from the number with the larger absolute value: 5 has a larger absolute value, so our answer will be positive: 2

(-3) + 5 = 2

Adding Integers with the Same Sign:

- Add the absolute values of the numbers
- Attach the common sign to the answer

1) Add the absolute values of the numbers: 2 + 4 = 6

2) Attach the common sign to the answer: the common sign is "-", so we end up with -6

(-2) + (-4) = -6

Adding Integers with Different Signs:

- Subtract the smaller absolute value from the larger
- Attach the sign from the number with the larger absolute value

1) Subtract the smaller absolute value from the larger: 5 - 3 = 2

2) Attach the sign from the number with the larger absolute value: 5 has a larger absolute value, so our answer will be positive: 2

(-3) + 5 = 2

Adding Integers Resources:

Videos:

Khan Academy - Video
Learn Zillion - Video
Virtual Nerd - Video
Text Lessons:

Khan Academy - Text Lesson
Math is Fun - Text Lesson
PurpleMath - Text Lesson
Worksheets:

Math-Aids - Worksheet
SuperTeacher Worksheets - Worksheet
Math Drills - Worksheet
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