Directed numbers

Order of operations

Dont forget.

1) Perform the calculations in the brackets first.
2) Next, perform multiplication or division, which is first as we move left to right.
3) Finally, perform addition or subtraction, which is first as we move left to right.
Lets put everything together and do some exercises.
Exercise
Solution
Answer
1) (-3 - -4) - 5 X 2 =
2) -3 - 4 X -3 =
3) (-3 - +4) - 3 X -2 =
4) -9 X -2 + (-6 - -8) =  
5) 13 X -2 + -(8 - -9) =  
6) (19 - -23) - 4 X 3 =  
7) 3 X (-3 - -4) - 2 X (-2 + -5) =  
8) -10 - + 3 x (4 - -12) =  
9) -5 + -4 x (-3 - +12) =  
10) -2 x (12 + -23) - -14 =  
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