sign sign 2

Post on 19-Jan-2015

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DESCRIPTION

This will help students rewrite the sign sign phenomenon.

TRANSCRIPT

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-9+(-4)

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-9+(-4)

-9-4Because

adding a negativeis equivalent to

subtracting a positive.

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-(-4)+(-3)

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-(-4)+(-3)

4-3Because

adding a negativeis equivalent to

subtracting a positive.

The opposite of a negative is a positive.

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-9-(-8)+(-3)

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-9-(-8)+(-3)

-9+8-3Because

subtracting a negativeis equivalent to

adding a positive.

Becauseadding a negative

is equivalent to subtracting a positive.

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-7(-1)-(-2)

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-7(-1)-(-2)

-7(-1)+2Because

subtracting a negativeis equivalent to

adding a positive.

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

4+(-5)

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

4+(-5)

4-5Because

adding a negativeis equivalent to

subtracting a positive.

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-8-10-(-2)

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-8-10-(-2)

-8-10+2Because

subtracting a negativeis equivalent to

adding a positive.

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-(-9)+8

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-(-9)+8

9+8Because

the opposite of a negativeis equivalent to a positive.

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-4+7+(-6)

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-4+7+(-6)

-4+7-6Because

adding a negativeis equivalent to

subtracting a positive.

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

5-(-9)

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

5-(-9)

5+9Because

subtracting a negativeis equivalent to

adding a positive.

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

2+-9

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

2+-9

2-9Because

adding a negativeis equivalent to

subtracting a positive.

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-5--9

Please rewrite the following expression

so that the Sign Sign phenomenon is eliminated.

-5--9

-5+9Because

subtracting a negativeis equivalent to

adding a positive.

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