Solve the following problem:
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Solve the following problem:
Adhering to the order of operations: Begin by calculating what's inside of the parentheses, then proceed to multiplication and division (from left to right), finish with addition and subtraction (from left to right)
When there are parentheses within parentheses, we start with the innermost ones first.
In this exercise, there are only subtraction operations and parentheses within parentheses.
Therefore, we will first perform the operation in the inner parentheses, after which we can remove the inner parentheses. We'll continue doing this until there are no more parentheses in the exercise.
Now we'll perform the operation in the remaining parentheses. We'll then proceed to remove the parentheses
Reminder - Addition and subtraction of numbers with the same sign
When we have two numbers with the same sign (plus or minus), that sign will remain in the result, which will actually be the result of an addition exercise.
Therefore the answer is option c - (-50)
\( 100-(30-21)= \)
The order of operations requires parentheses first! Going left to right ignores this rule and gives wrong answers. Always remember PEMDAS - Parentheses come before everything else.
Start with the innermost parentheses - the ones with no other parentheses inside them. In , solve (17-5) first because it's the deepest nested.
Try color-coding or numbering each layer of parentheses. Work on one layer at a time, and rewrite the expression after each step to see your progress clearly.
When you have a minus sign before parentheses like , it becomes . The negative distributes to everything inside the parentheses.
Yes! Try working backwards: if your answer is -50, then , and , and . Everything should match!
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