5.OA.1 Name: _______________________________________ _________________ # ________ HR Teacher: Math Study Guide: Order of Operations Vocabulary: Numerical Expression: A mathematical phrase that includes numerals and operational symbols. It does not have an equal sign. Brackets: [[[[A pair of symbols used to group things together.]]]] Braces: The outer most grouping symbol used in mathematics. Parentheses: The symbols “(“ and “)” that are generally used for grouping. Operation: A mathematical process applied to solve a problem. Addition, subtraction, multiplication, and division are the four basic operations. Sample Problems: 1. 5(3) hint: numbers outside of parentheses should be multiplied by the inside value. 2. 4 (7 – 2 ) 3. 11 ( 2 + 2 x 5 ) hint: complete operations inside of parentheses first. hint: inside the parentheses, follow the order of operations; multiply before you add. 4. 20 ÷ 5 – 1 x 3 hint: when you have multiplication and division, work left to right. 5. 10 ( 2 + 4 ) ( 14 ÷ 7 ) hint: remember to complete parentheses first and move left to right. 6. 97 – [ 20 x (15 ÷ 5 )] 7. 2 x { 7 x 4 – [ (6 + 2) x 3 ] } hint: work inside -> outside: parentheses, brackets… hint: work inside -> outside: parentheses, brackets, and braces, oh my! 5.OA.1 Name: _______________________________________ _________________ # ________ HR Teacher: Math Test: Order of Operations Vocabulary: Match each word to the picture that best represents its definition. 1. __________ operations A. ( ) 2. __________ expression B. { } 3. __________ brackets C. +, -, x, ÷ 4. __________ braces D. [ ] 5. __________ parentheses E. 7 ( 3 + 2 ) 6. An expression is a mathematical phrase that does not have a(an) __________. a. b. c. d. Value Equal sign Grouping symbol Fraction Computation: Find the value of each expression. SHOW YOUR WORK. 7. 19 – 3 x 5 8. 35 ÷ ( 8 ÷ 1 – 3 ) x 9 Value: __________ 9. 4 ( 8 – 3 ) Value: __________ 10. ( 36 ÷ 6 ) ( 2 X 4 ) Value: __________ Value: __________ 11. [3 x (7 – 2)] -9 12. 72 – [60 + 32 ÷ (2 x 4)] Value: __________ 13. {100 – [10 x (2 + 1)] ÷ 5} - 85 Value: __________ 14. 100 – {20 x [15 – (2 x 5)] - 50} Value: __________ 15. Which of the following expressions has a value of 24? Value: __________ 16. Which of the following expressions has the greatest value? a. (2 + 1)(3 x 2) a. (2 + 5) x 3 – 1 b. 100 ÷ 4 - 1 b. 2 + 5 x (3 – 1) c. [15 + (12 ÷ 2) x 2] – 18 c. 2 + (5 x 3 – 1) d. (24 x 1 – 1) – 1 d. they are all equal 17. Which of the following statements about the order of operations is NOT true? 18. Which expression has a value of 0? a. 13 – (12 – 7) x 2 a. Complete grouping symbols first. b. Do multiplication before subtraction. c. When multiplication and division are in a problem, work from right to left. d. You should always use the order of operations when evaluating expressions. 19. b. 7 x 10 - 4 ÷ 2 c. [19 + (2 x 3 + 4)] x 0 d. 44 ÷ 44 + 1 Jack and Jill are evaluating the expression… 4+5x3 Jack believes the value is 27. Jill says the value is 19. Who is correct? _______________ Explain what the other person is doing incorrectly. ____________________________________________________________________________ ____________________________________________________________________________ __________________ 20. On a scale of 1 – 10 (1 being TERRIBLE and 10 being AMAZING) How would you rate your ability to solve numerical expression using the order of operations? Circle your answer. 0 1 2 3 4 5 6 7 8 9 10 Answer Key 5.OA.1 Name: _______________________________________ _________________ # ________ HR Teacher: Math Test: Order of Operations Vocabulary: Match each word to the picture that best represents its definition. 1. C. operations A. ( ) 2. E. expression B. { } 3. D. brackets C. +, -, x, ÷ 4. B. braces 5. A. parentheses D. [ ] E. 7 ( 3 + 2 ) 6. An expression is a mathematical phrase that does not have a(an) equal sign. a. b. c. d. Value Equal sign Grouping symbol Fraction Computation: Find the value of each expression. SHOW YOUR WORK. 7. 19 – 3 x 5 8. 35 ÷ ( 8 ÷ 1 – 3 ) x 9 19 - 15 35 ÷ (8 – 3) x 9 4 35 ÷ 5 x 9 7x9 Value: 4 9. 4 ( 8 – 3 ) 63 Value: 63 10. ( 36 ÷ 6 ) ( 2 X 4 ) 4 (5) (6) (2 x 4) 20 (6) (8) 48 Value: 20 Value: 48 11. [3 x (7 – 2)] -9 12. 72 – [60 + 32 ÷ (2 x 4)] 72 – [60 + 32 ÷ 8] [3 x 5] - 9 15 - 9 72 – [60 + 4] 6 72 - 64 8 Value: 6 Value: 8 13. {100 – [10 x (2 + 1)] ÷ 5} - 85 14. 100 – {20 x [15 – (2 x 5)] - 50} {100 – [10 x 3] ÷ 5} - 85 100 – {20 x [15 – 10] – 50} {100 – 30 ÷ 5} - 85 100 – {20 x 5 – 50} {100 – 6} - 85 100 – {100 – 50} 94 - 85 100 - 50 9 50 Value: 9 15. Which of the following expressions has a value of 24? Value: 50 16. Which of the following expressions has the greatest value? a. (2 + 1)(3 x 2) a. (2 + 5) x 3 – 1 b. 100 ÷ 4 - 1 b. 2 + 5 x (3 – 1) c. [15 + (12 ÷ 2) x 2] – 18 c. 2 + (5 x 3 – 1) d. (24 x 1 – 1) – 1 d. they are all equal 17. Which of the following statements about the order of operations is NOT true? 18. Which expression has a value of 0? a. 13 – (12 – 7) x 2 a. Complete grouping symbols first. b. Do multiplication before subtraction. c. When multiplication and division are in a problem, work from right to left. d. You should always use the order of operations when evaluating expressions. 19. b. 7 x 10 - 4 ÷ 2 c. [19 + (2 x 3 + 4)] x 0 d. 44 ÷ 44 + 1 Jack and Jill are evaluating the expression… 4+5x3 Jack believes the value is 27. Jill says the value is 19. Who is correct? Jill Explain what the other person is doing incorrectly. ____________________________________________________________________________ ____________________________________________________________________________ __________________ 20. On a scale of 1 – 10 (1 being TERRIBLE and 10 being AMAZING) How would you rate your ability to solve numerical expression using the order of operations? Circle your answer. 0 1 2 3 4 5 6 7 8 9 10