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1 Addition of Integers Rules Same Sign Add Keep the Sign Different Signs Subtract Take the sign of the integer with the larger absolute value plus plus plus Sign of the integer? with the larger absolute value. plus? Sign of the integer with the larger absolute value.

2 Subtraction of Integers Rules Don t subtract! Add a line and then change the sign. Use the addition rules. Add a line --- change the subtraction to addition. Change the sign --- after changing to addition, change the sign of the second integer. minus minus addition. addition. negative. positive.? Sign of the integer with the larger absolute value.? Sign of the integer with the larger absolute value. minus addition. positive. minus addition. negative.

3 Multiplication of Integers Rules Same Sign Multiply The answer will be positive Different Signs Multiply The answer will be negative times times times times

4 Division of Integers Rules Same Sign Divide The answer will be positive Different Signs Divide The answer will be negative Divided by a Divided by a Divided by a Divided by a

5 Addition/Subtraction of Integers Rules Same Sign Add Keep the Sign Different Signs Subtract Take the sign of the integer with the larger absolute value plus plus plus? plus? Sign of the integer with the larger absolute value. Sign of the integer with the larger absolute value. Don t subtract! Add a line, then change the sign and use the addition rules. minus addition minus? minus? addition addition Sign of the integer with the larger absolute value. Sign of the integer with the larger absolute value. positive minus addition negative positive negative

6 Multiplication/Division of Integers Rules Same Sign Multiply The answer will be positive Different Signs Multiply The answer will be negative Same Sign Divide The answer will be positive Different Signs Divide The answer will be negative times divided by times divided by times divided by times divided by

7 Addition Integer Rules

8 Subtraction Integer Rules

9 Multiplication Integer Rules

10 Division Integer Rules

11 Same Sign - Add - Keep the sign Different Signs - Subtract - Take the sign of the integer with the larger absolute value

12 - Don t subtract - Change the subtraction sign to addition - Change the sign of the second integer - Follow the addition of integer rules

13 Same Sign - Multiply - The answer will be positive Different Signs - Multiply - The answer will be negative

14 Same Sign - Divide - The answer will be positive Different Signs - Divide - The answer will be negative

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