Error Analysis Order of Operations – Billy Bob missed class yesterday so he went onto the school website to pull up the Order of Operations worksheet. He and but made mistakes along the way. took risks worked persistently In the boxes below, please: a) Circle the mistakes in his original work. b) Then show the correct work below and solve the problem. 25 9 x 2 + 3 = 2 + 3(5 + 4) = 15 12 4 x 3 = – – 25 18 + 3 2 + 3(9) 15 12 12 – – 25 21 5(9) 15 1 – – 4 45 14 Corrections: Corrections: Corrections: 6 + 9 3 x 4 = 5 x 6 33 3 = 4(8 2) = – – 2 + 1 15 3 x 4 5 x 6 - 9 3 4(6) 5 x 4 30 3 2 + 1 – 20 27 24 2 + 1 Corrections: Corrections: 12 + 1 13 Corrections:
Error Analysis – Order of Operations Billy Bob missed class yesterday so he went onto the school website to pull up the Order of Operations worksheet. He took risks and worked persistently but made mistakes along the way. In the boxes below, please: a) Circle the mistakes in his original work. b) Then show the correct work below and solve the problem. 25 – 9 x 2 + 3 = 25 – 18 + 3 25 – 21 4 Corrections: 2 + 3(5 + 4) = 2 + 3(9) 5(9) 45 Corrections: 15 – 12 4 x 3 = 15 – 12 12 15 – 1 14 Corrections: 6 + 9 3 x 4 = 15 3 x 4 5 x 4 20 Corrections: 5 x 6 – 33 3 = 5 x 6 - 9 3 30 – 3 27 Corrections: 4(8 – 2) = 2 + 1 4(6) 2 + 1 24 2 + 1 12 + 1 13 Corrections:
PEMDAS%20Error%20Analysis.docx