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Math Grade 4-5 Answer Key

Math: Order of Operations

Using the correct steps to solve expressions

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Math: Order of Operations

Using the correct steps to solve expressions

Math - Grade 4-5

Instructions: Read each problem carefully. Solve each expression by using the correct order of operations. Show your work in the space provided.
  1. 1

    Solve: 4 + 3 x 2

    Do multiplication before addition.

    The answer is 10 because you multiply first. Since 3 x 2 = 6, then 4 + 6 = 10.
  2. 2

    Solve: (4 + 3) x 2

    The answer is 14 because you solve inside the parentheses first. Since 4 + 3 = 7, then 7 x 2 = 14.
  3. 3

    Solve: 18 - 6 / 2

    Do division before subtraction.

    The answer is 15 because you divide before you subtract. Since 6 / 2 = 3, then 18 - 3 = 15.
  4. 4

    Solve: (18 - 6) / 2

    The answer is 6 because you solve inside the parentheses first. Since 18 - 6 = 12, then 12 / 2 = 6.
  5. 5

    Solve: 5 + 2 x 6

    Multiplication comes before addition.

    The answer is 17 because you multiply first. Since 2 x 6 = 12, then 5 + 12 = 17.
  6. 6

    Solve: (5 + 2) x 6

    The answer is 42 because you solve the parentheses first. Since 5 + 2 = 7, then 7 x 6 = 42.
  7. 7

    Solve: 20 - 3 x 4

    Find the product first.

    The answer is 8 because you multiply before subtracting. Since 3 x 4 = 12, then 20 - 12 = 8.
  8. 8

    Solve: (20 - 8) + 5

    The answer is 17 because you solve inside the parentheses first. Since 20 - 8 = 12, then 12 + 5 = 17.
  9. 9

    Solve: 24 / 6 + 7

    Division comes before addition.

    The answer is 11 because you divide first. Since 24 / 6 = 4, then 4 + 7 = 11.
  10. 10

    Solve: 24 / (6 - 2)

    The answer is 6 because you solve the parentheses first. Since 6 - 2 = 4, then 24 / 4 = 6.
  11. 11

    Solve: 7 + 8 / 4

    Do the division first.

    The answer is 9 because you divide before adding. Since 8 / 4 = 2, then 7 + 2 = 9.
  12. 12

    Solve: (7 + 8) / 5

    The answer is 3 because you solve the parentheses first. Since 7 + 8 = 15, then 15 / 5 = 3.
  13. 13

    Solve: 6 x 3 - 4

    Multiply before subtracting.

    The answer is 14 because you multiply first. Since 6 x 3 = 18, then 18 - 4 = 14.
  14. 14

    Solve: 6 x (3 - 1)

    The answer is 12 because you solve inside the parentheses first. Since 3 - 1 = 2, then 6 x 2 = 12.
  15. 15

    Write your own expression that equals 16 and uses parentheses. Then solve it.

    Try making an addition problem inside parentheses and then multiplying or dividing.

    One correct example is (5 + 3) x 2 = 16. First solve inside the parentheses to get 8, and then multiply by 2 to get 16.
LivePhysics.com Math - Grade 4-5 - Answer Key