Topic 1: Arithmetic Operations
Simplify each of the following. Reduce fractions to lowest terms.
1.
2.
7
10
35
48
5
− 12
÷
28
9
3. 5.04 – 0.378
4. (2.04)(15.1) ÷ 0.2
5. –32
6. –√144
7. Write as a fraction in lowest terms:
2.012
8. Write as a decimal. Express your answer as a terminating or repeating decimal, as
appropriate.
5
18
9. Change to a percent:
0.025
10. What is 40% of 85?
11. What percent of 90 is 27?
12. Round to the nearest tenth: 52.2453
ANSWERS:
1.
17
2.
15
8. 0.27
60
9. 2.5%
64
3. 4.662
10. 34
4. 154.02
11. 30%
5. –9
12. 52.2
6. –12
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3
7. 2250