Absolute Value and Adding Integers

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Presentation transcript:

Absolute Value and Adding Integers

8/14/17 Warm Up 1. Order the integers from least to greatest. 9, -9, 0 1, 2, -5 2. Multiply 26 x 3.

1. Hand out Interactive Notebooks. 2. Insert iReady goal sheet if needed. 3. Fill out Table of Contents. Date Topic Pages 8/11 iReady student goals 1 8/14 Math Voc/Absolute value 2 Adding Integers 3

Math Vocabulary 1. Absolute value – a number’s distance from 0 on the number line. |12| = 12 |-7| = 7 2. Additive Inverses – two numbers whose sum equals 0. 2 + (-2) = 0 -7 + 7 = 0 3. Integers – whole numbers and their opposites. -9, -6, 0, 1, 3

In 6th grade, you talked about positive and negative numbers, absolute value, and ordering numbers from least to greatest. In 7th grade, we will add, subtract, multiply, and divide integers. Future, you will solve equations, and solve fraction problems using integer rules. What would be some real-world examples where you would see or use positive and negative numbers?

Absolute value Find the absolute value of the following. 1. |12| 2. |-4| 3. |-8| 4. |-34| 5. |-3| + |7| 6. - |-20|

Practice. 1. 5 + (-8) 2. -3 + 3 3. -3 + (-8) 4. -7 + (-7) 5. -8 + 10 1. 5 + (-8) 2. -3 + 3 3. -3 + (-8) 4. -7 + (-7) 5. -8 + 10 6. -7 + 13 7. -14 + (-13) 8. -8 + (-4) 9. 10 + 5 10. -8 + (-4) + (-4) + (-6)

Exit Ticket 1. In your own words, describe how to find the absolute value of a number. 2. Find -2 + -2 3. Find -5 + 8