Question

MEDALS GIVEN PLZ HELP


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) + 32 • 6

Step 1: 12 ÷ 3 + 2 + 32 • 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

Answer 1

idk kristina, she just magically turned 32 to 9 in step 1-2
Step 1:12 ÷ 3 + 2 + 32 • 6
Step 2: 4 + 2 + 32 • 6
Step 3: 4+2+192
Step 4:198 the end

Answer 2

It dose not seem right.

Answer 3

how come? i followed order of operations
http://www.mathsisfun.com/algebra/operations-order-calculator.html

Answer 4

moudown828 is right, 32 became 9 which is a mistake on her part, it still should be 32 in step 2, not 9.

Answer 5

ditto