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Let's begin by remembering the order of arithmetic operations: calculation of the operation within parentheses, multiplication and division (from left to right), addition and subtraction (from left to right)
We must also underline that when there are parentheses within parentheses, we should start with the innermost first.
Let's begin by remembering the order of arithmetic operations: calculation of the operation within parentheses, multiplication and division (from left to right), addition and subtraction (from left to right)
We must also underline that when there are parentheses within parentheses, we should start with the innermost first.
Keep in mind
What happens when there is a sequence of two signs present in the exercise (these are usually separated by parentheses) Let's highlight several different cases:
When a sequence with two plus signs appears, the result will also be a plus.
When a sequence with two minus signs appears, the result will also be a plus.
When a sequence with minus and plus signs or plus and minus signs appears, the result will be minus.
Reminder: addition and subtraction of directed numbers
When we have two numbers with different signs, it is important to determine which number is greater in terms of absolute value (absolute - the distance from zero). The larger number will determine the sign of the result and we will perform a subtraction exercise.
Now we will perform the operation of the remaining parentheses and after the calculation, we will remove the parentheses.
Therefore, the correct answer is c: (9)
\( 100-(5+55)= \)
The order of operations (PEMDAS/BODMAS) requires you to handle parentheses from the inside out. Think of nested parentheses like layers of an onion - you peel away the innermost layer first!
Subtracting a negative is the same as adding the positive! So becomes . Remember: two negatives make a positive.
Work step by step and rewrite the expression after each calculation. Use different colors or underline the part you're working on. Don't try to do multiple steps in your head!
Take your time with sign rules:
No! You must follow the order of operations. Parentheses always come before other operations, and nested parentheses must be solved from innermost to outermost.
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