Assignment # _____ - Order of Operations

Assignment # _____ Order of Operations (P1) Name ______

Standard: AF 1.2 Use the order of operations Pre-Algebra, Period ______

Date ______Order of Operations (Part 1) 1. Multiply and divide in order from left to right 2. Add and subtract in order from left to right

Example 1

Simply 4 +15 ё 3 = 4 + 5 Divide first = 9 Then add

Example 2

When operations have the same rank (multiply/divide or add/subtract) do them from left to right.

Simply 3· 5 – 8 ё 4 + 6 = 15 – 2 + 6 Multiply and divide from left to right = 13 + 6 Add and subtract from left to right = 19 Add

Simplify each expression.

1. 21 – 13 + 8 = 2. 7 + 3 – 2 + 4 = 3. 6  2 + 4 = 4. 2 + 3  14 =

5. 12  3 – 2 + 1 = 6. 2  2 + 0  4 = 7. 8 + 12  4 = 8. 4  2 + 3 – 2 =

9. 26 – 15 + 8  2 = 10. 18 + 6  3  2 = 11. 16 – 6 + 2  4 = 12. A student found the value of the expression 30  6 – 1 to be 6. Explain the student’s error in a COMPLETE sentence or two.

13. You buy 3 notebooks for $2 each and 4 pens for $1 each. Evaluate the expression 3  2 + 4  1 to find the total number of dollars you spend.

14. A part-time employee worked 4 hours on Monday and 7 hours each day for the next 3 days. Write and simplify an expression that shows the total number of hours worked.

Example 1 Write the product as a power, describe it in words, and evaluate the power.

4 · 4 · 4 =

As a power: 4 3

Described using words: 4 to the third power or 4 cubed

Expression evaluated: 64

Write the product as a power, describe it in words, and evaluate the power.

2  2  2  2  2  2 =

15. As a power: ______

16. Described using words: ______

17. Expression evaluated: ______