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Integers. Multiplying and Dividing Integers. The aim of this lesson is to be able to multiply and divide all integers by both positive and negative integers. + + = + - - = + - + = - + - = -. same symbol x same symbol = positive different symbol x different symbol
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Integers Multiplying and Dividing Integers
The aim of this lesson is to be able to multiply and divide all integers by both positive and negative integers
++ = + -- = + -+= - +-= - same symbol x same symbol = positive different symbol x different symbol = negative To multiply we use the following set of rules:
Multiply the following, applying the rules: ++ = + -- = + -+= - +-= - -+= - 1. -5 x 7 5 x 7 = 35 Answer:-35 -- = + 9 x 4 = 36 2. -9 x -4 Answer:36 +-= - 6 x 3 = 18 3. 6 x -3 Answer:-18
++ = + -- = + -+= - +-= - same symbol same symbol = positive different symbol different symbol = negative To divide we use a similar set of rules:
Divide the following, applying the rules: ++ = + -- = + -+= - +-= - - += - 1. -35 7 35 7 = 5 Answer:-5 -- = + 32 4 = 8 2. -32 -4 Answer:8 +-= - 6 3 = 2 3. 6 -3 Answer:-2