Valeria tried to evaluate an expression. Here is her work:8+12÷4×428+12÷4×16 {Step 1}20÷4×16 {Step 2}5×16 {Step 3}80 {Step 4}Is Valeria's work correct?Choices:(A)No, Valeria made a mistake going from the given expression to Step 1. Valeria should have multiplied 4 by 4 instead of evaluating the exponent. The order of operations says to multiply before you evaluate exponents.(B)No, Valeria made a mistake going from Step 1 to Step 2. Valeria should have divided 12 by 4 before adding. The order of operations says to divide before you add.(C)Yes, Valeria's work is correct.
Q. Valeria tried to evaluate an expression. Here is her work:8+12÷4×428+12÷4×16 {Step 1}20÷4×16 {Step 2}5×16 {Step 3}80 {Step 4}Is Valeria's work correct?Choices:(A)No, Valeria made a mistake going from the given expression to Step 1. Valeria should have multiplied 4 by 4 instead of evaluating the exponent. The order of operations says to multiply before you evaluate exponents.(B)No, Valeria made a mistake going from Step 1 to Step 2. Valeria should have divided 12 by 4 before adding. The order of operations says to divide before you add.(C)Yes, Valeria's work is correct.
Evaluate Exponent: Step 1: Evaluate the exponent in the expression.Calculation: 42=16Math error check:
Perform Division: Step 2: Perform the division next according to the order of operations.Calculation: 12÷4=3Math error check:
Multiply Results: Step 3: Multiply the result from Step 2 by the result from Step 1.Calculation: 3×16=48Math error check:
Add to 8: Step 4: Add the result from Step 3 to 8. Calculation: 8+48=56Math error check:
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