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1. |
Use the factor tree to write the prime factorization of 120. |
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A. |
2 × 2 × 3 × 5 |
B. |
2 × 60 |
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C. |
2 × 2 × 2 × 3 × 5 |
D. |
2 × 3 × 5 |
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Hint |
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2. |
What is the greatest common factor of 25a2b and 5ab2? |
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A. |
5ab |
B. |
5 |
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C. |
5ab2 |
D. |
5a2b2 |
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Hint |
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3. |
Find the least common multiple of 3, 4, and 5. |
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A. |
30 |
B. |
12 |
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C. |
120 |
D. |
60 |
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Hint |
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4. |
Express  in simplest form. |
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A. |
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B. |
 |
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C. |
 |
D. |
 |
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Hint |
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5. |
Express 31 per hundred as a percent. |
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A. |
31% |
B. |
31 |
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C. |
0.31% |
D. |
31% |
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Hint |
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6. |
Express  as a decimal. |
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A. |
1.25 |
B. |
0.0125 |
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C. |
0.125 |
D. |
0.8 |
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Hint |
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7. |
Write the prime factorization of 810. |
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A. |
32 × 4 × 5 |
B. |
2 × 5 × 92 |
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C. |
2 × 34 × 5 |
D. |
2 ×3 × 5 |
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Hint |
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8. |
What is the greatest common factor of 64 and 40? |
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A. |
4 |
B. |
2 |
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C. |
20 |
D. |
8 |
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Hint |
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9. |
Which fraction is  when written in simplest form? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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10. |
Express  as a percent. |
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A. |
15% |
B. |
3% |
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C. |
6% |
D. |
12% |
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Hint |
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11. |
Express 0.24 as a fraction. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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12. |
Find the least common multiple of 6, 8, and 10. |
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A. |
120 |
B. |
86 |
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C. |
240 |
D. |
140 |
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Hint |
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13. |
Express  % as a decimal. |
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A. |
72.625 |
B. |
7.2625 |
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C. |
0.072625 |
D. |
0.72625 |
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Hint |
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14. |
The pie graph shows the percentage of people found in a survey to prefer certain colors of candy to others. Write the percentage of people who preferred red candy as a decimal. |
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A. |
2.1 |
B. |
0.21 |
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C. |
5.0 |
D. |
0.5 |
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Hint |
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15. |
Which set of rational numbers is ordered from least to greatest? |
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A. |
 , 0.6, 73%,  |
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B. |
0.6, , , 73% |
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C. |
, 73%, , 0.6 |
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D. |
0.6, , 73%, |
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Hint |
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16. |
Which set of rational numbers is ordered from greatest to least? |
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A. |
90%, 0.91,  ,  |
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B. |
 , 44%, 0.4, 4% |
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C. |
38%, , 0.3, 37% |
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D. |
 , , 0.07, 70% |
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Hint |
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