1
1.5

• Adding Real Numbers

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Adding Real Numbers

• Adding two numbers with the same sign
• Add their absolute values.
• Use their common sign as the sign of the sum.

Add the following numbers. 3 (5)
8
3
Adding Real Numbers

• Adding two numbers with different signs
• Subtract the smaller absolute value from the
  larger absolute value.
• Use the sign of the number whose absolute value
  is larger as the sign of the sum.

Add the following numbers. 4 12
8
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Additive Inverses

• Opposites or additive inverses are two numbers
  the same distance from 0 on the number line, but
  on opposite sides of 0.
• The sum of a number and its opposite is 0.
• If a is a number, ( a) a.

Add the following numbers. 15 15
0