Solve: 65-(4×3+2³÷4)-4³+5²÷5 Order of Operations Challenge

Solve the following problem:

65(43+23:4)43+52:5= 65-(4\cdot3+2^3:4)-4^3+5^2:5=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve the following problem
00:03 Always solve the parentheses first
00:06 Even within the parentheses maintain proper order of operations
00:12 Calculate 2 to the power of 3 according to the laws of exponents
00:20 Insert this value into the exercise
00:26 Calculate 4 to the power of 3 according to the laws of exponents
00:36 Insert this value into the exercise
00:43 Represent the division as a fraction
00:52 Always solve division before addition
00:59 A number squared is the number multiplied by itself
01:04 Continue to solve the expression according to the proper order of operations
01:12 Reduce the fraction
01:20 Continue to solve the expression according to the proper order of operations
01:23 Given that all the operations are addition/subtraction
01:26 Arrange the exercise in a more manageable way to solve
01:32 Continue to solve the expression according to the proper order of operations
01:39 This is the solution

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Solve the following problem:

65(43+23:4)43+52:5= 65-(4\cdot3+2^3:4)-4^3+5^2:5=

2

Step-by-step solution

Proceed to simplify the given expression whilst following the order of operations. The order of operations states that exponents precede multiplication and division, which in turn precede addition and subtraction, and that parentheses precede all of the above:

Therefore, we'll begin by simplifying the expressions inside of the parentheses. This should be carried out according to the order of operations mentioned above. We'll calculate the numerical value of the term with the exponent, which is the divided term inside of the parentheses. Simultaneously we'll calculate the result of the multiplication inside of the parentheses. Then we'll proceed to calculate the addition operation:

65(43+23:4)43+52:5=65(12+8:4)43+52:5=65(12+2)43+52:5=651443+52:5= 65-(4\cdot3+2^3:4)-4^3+5^2:5= \\ 65-(12+8:4)-4^3+5^2:5=\\ 65-(12+2)-4^3+5^2:5=\\ 65-14-4^3+5^2:5=\\ Simplify the resulting expression. Proceed to calculate the numerical value of the term with the exponent, which is the third term from the left. At the same time we will calculate the numerical value of the term with the exponent, which is divided by the fourth term from the left. We'll then continue to perform the division operation on this term. This is due to the fact that multiplication and division precede addition and subtraction:

651443+52:5=651464+25:5=651464+5 65-14-4^3+5^2:5=\\ 65-14-64+25:5=\\ 65-14-64+5 We'll finish simplifying the given expression and perform the addition and subtraction operations:

651464+5=8 65-14-64+5 =\\ -8 Let's summarize the steps of simplifying the given expression as shown below:

65(43+23:4)43+52:5=65(12+8:4)43+52:5=651464+5=8 65-(4\cdot3+2^3:4)-4^3+5^2:5= \\ 65-(12+8:4)-4^3+5^2:5=\\ 65-14-64+5 =\\ -8 Therefore, the correct answer is answer C.

3

Final Answer

8 -8

Practice Quiz

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\( 20\div(4+1)-3= \)

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