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7.NS.1a & b Add and Subtract Rational Numbers on a Number Line PowerPoint Presentation
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Common Core State Standards Learning Objective. 7.NS.1a & b Add and Subtract Rational Numbers on a Number Line. Using a number line to add integers. –6 –5 –4 –3 –2 –1 0 1 2 3 4 5. 2. Adding Integers with Different Signs. (–6) + 2.

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Presentation Transcript
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Common Core State Standards

Learning Objective

7.NS.1a & b

Add and Subtract Rational Numbers on a Number Line

using a number line to add integers
Using a number line to add integers

–6 –5 –4 –3 –2 –1 0 1 2 3 4 5

2

Adding Integers with Different Signs

(–6) + 2

To add a positive number move to the right.

To add a negative number move to the left.

Start at the first number (-6)

From –6, move right 2 units.

You finish at –4, so (–6) + 2 = –4.

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–6 –5 –4 –3 –2 –1 0 1 2 3 4 5

–6 –5 –4 –3 –2 –1 0 1 2 3 4 5

7

7

–3 + 7

Examples

Start at the first number (-3)

From –3, move right 7 units.

You finish at 4, so (–3) + 7 = 4.

–7 + 7

Start at the first number (-7)

From –, move right 7 units.

You finish at 0, so (–7) + 7 = 0.

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Check for Understanding:

Adding Negative Numbers

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Classwork & Homework

Explanation:

Charged Particle Addition Explanation

Classwork / Homework:

Charged Particles Addition Practice

Worksheet 1-4 Practice A Adding Integers