5.
Rule for addition of signed numbers of the same sign : Add the numbers and prefix the common sign. Rule for addition of signed numbers of different signs : Subtract the numbers and prefix the Sign of the number with the larger value.
6.
Rule for subtraction of signed numbers: Change the operation to addition, and change The sign of the second number. Then perform as in addition of signed numbers.
7.
Rule for two numbers with the same sign : The product/quotient of the two will be positive .
The product/quotient of the two will be negative .
9.
1.) Solve by disregarding signs. 2.) Do cancellation when possible. 3.) Count the negative signs. If even result is positive If odd result is negative
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