Big Ideas Math: Modeling Real Life, Grade 7
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Big Ideas Math: Modeling Real Life, Grade 7 View details
3. Identifying Proportional Relationships
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Exercise 5 Page 200

Adding can be thought of as going right on the number line.

-13

Practice makes perfect
Below we will demonstrate by finding -28 and moving 15 units to the right on the number line.

The resulting position, after moving to the right on the number line, is the sum. -28+15 = -13