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Title: RULES FOR OPERATIONS OF SIGNED NUMBERS
Description: RULES FOR OPERATIONS OF SIGNED NUMBERS Notes include- Adding two signed numbers Subtracting signed numbers Multiplying signed numbers Dividing signed numbers
Description: RULES FOR OPERATIONS OF SIGNED NUMBERS Notes include- Adding two signed numbers Subtracting signed numbers Multiplying signed numbers Dividing signed numbers
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RULES FOR OPERATIONS OF SIGNED NUMBERS
ADDING TWO SIGNED NUMBERS
1
...
Example: 2 + 4 = 6
2 is a positive number and 4 is a positive number, so 6 is a positive number
...
2
...
Example: 2 + (– 5 ) = – 3
Since the absolute value of 2 is the smaller than the absolute value of – 5 , subtract 2
from 5
...
Now 5 is the larger of the two absolute values, but is negative in the
problem, the answer will be made negative
...
5 – 2 = 3
...
SUBTRACTING SIGNED NUMBERS
1
...
You will be doing the opposite
operation of the sign of the number
...
Example: 5 – 2 = 3
5 and 2 are both positive numbers
...
Subtract 2 from 5 to get 3
...
5 – (– 2) = 7
5 is positive and – 2 is negative
...
5 – ( – 2) = 5 + 2 and 5 + 2 = 7
MULTIPLYING SIGNED NUMBERS
1
...
Example: (5) (2) = 10 or
( – 2) (– 5) = 10
2
...
Example: (5) (– 2) = – 10 or (– 5)(2) = – 10
DIVIDING SIGNED NUMBERS
1
...
Example: 6 ÷ 2 = 3 or (– 6) ÷ (– 2) = 3
2
...
Example: 6 ÷ (– 2) = ─ 3 or (– 6) ÷ 2 = ─ 3
Title: RULES FOR OPERATIONS OF SIGNED NUMBERS
Description: RULES FOR OPERATIONS OF SIGNED NUMBERS Notes include- Adding two signed numbers Subtracting signed numbers Multiplying signed numbers Dividing signed numbers
Description: RULES FOR OPERATIONS OF SIGNED NUMBERS Notes include- Adding two signed numbers Subtracting signed numbers Multiplying signed numbers Dividing signed numbers