Solve the Expression: 20-(1+9:9) Using Order of Operations

20−(1+9:9)= 20-(1+9:9)=

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Step-by-step video solution

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00:06 Let's solve this math problem together.
00:10 Remember, always start with the parentheses.
00:14 Next, do multiplication and division before addition and subtraction.
00:19 Calculate inside the parentheses first, then finish the rest of the expression.
00:25 And there you have the solution! Great job!

Step-by-step written solution

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1

Understand the problem

20−(1+9:9)= 20-(1+9:9)=

2

Step-by-step solution

First, we solve the exercise in the parentheses

(1+9:9)= (1+9:9)=

According to the order of operations, we first divide and then add:

1+1=2 1+1=2

Now we obtain the exercise:

20−2=18 20-2=18

3

Final Answer

18 18

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\( 100+5-100+5 \)

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