Subtracting Integers.

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Presentation transcript:

Subtracting Integers

-9 -5 - 4 = Same Sign Add & Keep

-8 -3 - 5 = Same Sign Add & Keep

-124 - 38 = -162 Same Sign Add & Keep

-124 - 38 -124 + (- 38) Are these expressions Different?

2 8 - 6 = + + + + Different Signs Subtract + + + +

-3 3 - 6 = + + + Different Signs Subtract

58 - 98 58 + (-98) Are these expressions Different?

12 5 -(-7) = Same Sign Add & Keep

7 3 -(-4) = Same Sign Add & Keep

-3 -(-5) = 2 Different Signs Subtract

-9 -(-3) = -6 Different Signs Subtract

Make Giant Plus sign if you see -(- Circle each integer with ONE sign in front of it. Decide Same signs or Different Apply Rule

-3 - 9 =

8 - 9 =

-3 – (-4) =

7 – (-4) =

Your turn! Worksheet A/B #1-19 all