# Order of Operations: Pre-assessment

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For each expression, tell which operation would be completed first, and why.

 1. (14 + 2) - 3 + 1 The addition in the Parentheses would come first, 14 + 2 2. 12 + (1 + 24) - 5 The addition in the Parentheses would come first, 1 + 24 3. 12 - [(5 + 2) + (16 - 4)] There are two things in parentheses. 5 + 2 is first left to right. 4. 18 - (5 - 2) + {12 - [1 + (7 - 2)] - (3 + 1)} There are 3 things in parentheses. 5-2 is first. 5. 8 + (15 - 3) The subtraction in the Parentheses is first, 15 - 3 6. 34 - (5 + 35) ÷ 5 The addition in the Parentheses is first, 5 + 35 7. (62 - 4) + (9 - 7) x 3 There are two things in Parentheses, 62 - 4 is first 8. (9 + 5) - 16 ÷ 4 The addition in the Parentheses would come first, 9 + 5 9. 18 - 1 + 7 x 2 There are no Parentheses so Multiplication would be first, 7 x 2 10. 9 x 7 + (7 - 3) The subtraction in the Parentheses would come first, 7 - 3

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7

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### Related Resources

The various resources listed below are aligned to the same standard, (5OA02) taken from the CCSM (Common Core Standards For Mathematics) as the Expressions and equations Worksheet shown above.

Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. For example, express the calculation "add 8 and 7, then multiply by 2" as 2 x (8 + 7). Recognize that 3 x (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product.

#### Worksheet

Similar to the above listing, the resources below are aligned to related standards in the Common Core For Mathematics that together support the following learning outcome:

Write and interpret numerical expressions

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