Lessons%202.2%20and%202.3%20Adding%20and%20Subtracting%20Real%20Numbers

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Lessons 2.2 and 2.3Adding and Subtracting Real
Numbers
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3-ways to think of it

• Number Line
• Rules
• Algebra Tiles

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Adding Real Numbers

• Examples
• Number Line

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Adding Real Numbers

• Examples
• Algebra Tiles

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Adding Real Numbers

• Examples
• Rules

Adding two numbers with the SAME signs Add the
two numbers together (without paying attention to
the signs), then the sum has the same sign as the
sign of the numbers added.
Adding two numbers with DIFFERENT signs Find the
difference of the numbers (without paying
attention to the signs), then the sum has the
same sign as the larger number.
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Adding Real Numbers You Try!
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Adding Multiple Real Numbers
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• Pizzazz with Adding Worksheet!

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Subtracting Real Numbers

• Good News
• Subtracting just means add the opposite
• Example 14 8 14 (-8)
• So -3 5 -3 (-5)
• And 13 16 13 (-16)
• And -9 (-4) -9 (4)

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Number Line

• You can also think about the number line when
  subtracting

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Subtracting Real Numbers
You try!!!
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Subtracting Real Numbers
You try!!!
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• Pizzazz with Subtracting Worksheet!

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Adding AND Subtracting
You try!!!
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• Worksheet with Adding AND Subtracting!

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Adding AND Subtracting - Decimals
You try!!!
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Adding AND Subtracting Fractions!
You try!!!
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• Half-Sheet with Adding and Subtracting Fractions
  and Decimals!