Solve the Expression: 4-5×7+3 Using Order of Operations

Complete the exercise:

45×7+3= 4-5\times7+3=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:06 Remember, multiplication and division come first before addition and subtraction.
00:16 Use the commutative rule to rearrange numbers for easier solving.
00:21 Add and subtract in order from left to right, since they're at the same level.
00:31 And that's how you find the solution!

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Complete the exercise:

45×7+3= 4-5\times7+3=

2

Step-by-step solution

According to the rules of the order of arithmetic operations, we must first solve the multiplication exercises.

We place them inside of parentheses to avoid confusion during the solution:

4(5×7)+3= 4-(5\times7)+3=

We then solve the multiplication exercises:

435+3= 4-35+3=

Lastly we solve the rest of the exercise from left to right:

435=31 4-35=-31

31+3=28 -31+3=-28

3

Final Answer

28 -28

Practice Quiz

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\( 8 + 3 \times 2 = \)

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