Post-test Choose the letter of the correct answer, and write it on a separate sheet of paper. 1. Find the value of N in the equation 12 + 3 x 2 = N A. 2 B. 4 C.6 D. 18 2. Evaluate the numerical exp ion 5 + 7 x 2. D. 24 A. 19 B. 20 C. 22 3. Simplify the equation 4 -(3-2) + 1 x (15+3) = N D. 20 A. 8 B. 10 C. 16 4. In solving the equation 48 + (5 - 1) = N, what would be the last step? D. Subtraction A. Addition B. Division C. Multiplication 5. Which of the following steps correctly lists the order of operations? A. Subtraction, Addition, Multiplication Division, Groupings B. Addition, Multiplication, Groupings, Division, Subtraction C. Parentheses, Addition or Subtraction, Division or Multiplication D. Parentheses, Multiplication or Division, Addition or Subtraction​