Download 3 ­ 5 ­4 ­ 8 Subtracting Rational Numbers Algebra 1

A12­2SubtrRationalNumbers.notebook
September 02, 2010
Algebra 1
Ch.2 Notes Page 12
P12 2­2 Subtracting Rational Numbers
Sep 2­8:31 AM
Subtracting Rational Numbers
Change All Subtraction problems to Addition.
PLUS THE OPPOSITE
The First Number Stays the Same.
Change the Minus to a Plus
Change the Sign of the Second Number
The Opposite of a Positive is a Negative
The Opposite of a Negative is a Positive
3 ­ 5
­4 ­ 8
Sep 2­8:31 AM
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A12­2SubtrRationalNumbers.notebook
September 02, 2010
More Subtraction Examples:
­4 ­ ­6
3.5 ­ ­2.5
1/4 ­ 3/4
| ­4 | ­ | ­6 |
Sep 2­8:32 AM
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