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Practice 1-2 The Order of Operations
Simplify each expression.
1. 3 1 15 2 5 ? 2
2. 5 ? 6 1 2 ? 4
3. 48 4 8 2 1
4. 68 2 12 4 2 4 3
5. 6(2 1 7)
6. 25 2 (6 ? 4)
7. 3f9 2 (6 2 3)g 2 10
8. 60 4 (3 1 12)
9. 4 2 2 1 6 ? 2
10. 18 4 (5 2 2)
1 24
11. 16
30 2 22
12. 2f4(9 2 7) 1 1g
13. (8 4 8 1 2 1 11) 4 2
14. 9 1 3 ? 4
15. 18 4 3 ? 5 2 4
16. 10 1 28 4 14 2 5
Insert grouping symbols to make each number sentence true.
17. 3 1 5 ? 8 5 64
18. 4 ? 6 2 2 1 7 5 23
19. 10 4 3 1 2 ? 4 5 8
20. 3 1 6 ? 2 5 18
A city park has two walkways with a grassy
area in the center, as shown in the diagram.
10 m
12 ? 10 2 12 ? 6
grass
12 m
22. Write an expression for the area of the
sidewalks, using addition.
3 ? 12 1 1 ? 12
walkway
walkway
3m
6m
1m
Compare. Use +, *, or ! to complete each statement.
23. (24 2 8) 4 4
24 2 8 4 4
24. 3 ? (4 2 2) ? 5
3?422?5
25. (22 1 8) 4 2
22 1 8 4 2
26. 20 4 2 1 8 ? 2
20 4 (2 1 8) ? 2
27. 11 ? 4 2 2
11 ? (4 2 2)
Pre-Algebra Chapter 1
28. (7 ? 3) 2 (4 ? 2)
2
7?324?2
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21. Write an expression for the area of the
sidewalks, using subtraction.