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According to the order of operations, we first solve the exercise within parentheses:
Remember that the product of a negative by a negative results in a positive, therefore:
We obtain the exercise:
We solve the exercise within parentheses:
Now we obtain:
\( 100-(5+55)= \)
The double negative rule says that subtracting a negative is the same as adding a positive. Think of it as: minus a minus equals plus. So .
No! Work from the inside out. First handle the double negative , then solve , finally calculate .
You'll get the wrong answer! If you use -12 instead of +12, you get , then instead of the correct -63.
Think of it like "two wrongs make a right" or use the phrase "minus times minus equals plus." The two negative signs cancel each other out!
Yes! The P in PEMDAS means Parentheses first. Always solve what's inside parentheses before doing any other operations like subtraction or addition.
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