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Kristina’s work to simplify the expression 12 ÷ 3 + (7 – 5) + 32 • 6 is shown below. Did Kristina make a mistake? If so: Part 1: Explain where she made her mistake. Part 2: Simplify the expression correctly to tell what her answer should have been. Expression: 12 ÷ 3 + (7 – 5) + 3^2 • 6 Step 1: 12 ÷ 3 + 2 + 3^2 • 6 Step 2: 12 ÷ 3 + 2 + 9 • 6 Step 3: 12 ÷ 3 + 11 • 6 Step 4: 4 + 11 • 6 Step 5: 4 + 66 Answer: 70
where do you think her mistake is??
Use PEMDAS parenthases exponents multipication divition addition subtraction. Did she use this? Did she do the steps correctly
Step three?
yes correct. Good Job!.