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Big Ideas Math: Modeling Real Life, Grade 7
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Big Ideas Math: Modeling Real Life, Grade 7 View details
4. Subtracting Integers
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Exercise 1 Page 24

When we subtract a positive integer from a positive integer we first move to the right and then to the left on a number line.

- 3

Practice makes perfect
We want to use a number line to find a difference. We can start by considering the given expression. 1- 4 This time we want to subtract 4 from 1. Let's draw an arrow from 0 to 1 on the the number line!

Next we can draw an arrow 4 units to the left to represent subtracting 4.

The difference of these two numbers is - 3.

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arrow_right Try It p.24-25
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Try It 2 (Page 24)
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arrow_right Self-Assessment for Concept & Skills p.25
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