Solve 28-(4+9): Order of Operations Practice Problem

28−(4+9)= 28-(4+9)=

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Step-by-step video solution

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00:00 Solve
00:03 Always solve parentheses first
00:09 Now we'll continue solving as usual
00:11 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

28−(4+9)= 28-(4+9)=

2

Step-by-step solution

According to the order of operations, we first solve the exercise within parentheses:

4+9=13 4+9=13

Now we obtain the exercise:

28−13=15 28-13=15

3

Final Answer

15 15

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\( 100-(30-21)= \)

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