| |
| |
1. |
Which of the following numbers is divisible by 3? |
| |
|
A. |
163 |
B. |
23 |
| |
|
C. |
35 |
D. |
162 |
| |
|
Hint |
|
| |
2. |
The number 156 is divisible by which of the following numbers? |
| |
|
A. |
3 |
B. |
4 |
| |
|
C. |
2 |
D. |
All of the above |
| |
|
Hint |
|
| |
3. |
Use the factor tree to write the prime factorization of 120. |
| |
|
A. |
2 × 2 × 2 × 3 × 5 |
B. |
2 × 3 × 5 |
| |
|
C. |
2 × 60 |
D. |
2 × 2 × 3 × 5 |
| |
|
Hint |
|
| |
4. |
What are the prime factors of 400? |
| |
|
A. |
2, 4, 5 |
B. |
2, 200 |
| |
|
C. |
4, 10, 10 |
D. |
2, 5 |
| |
|
Hint |
|
| |
5. |
What is the least positive number divisible by 4, 6, and 9? |
| |
|
A. |
72 |
B. |
216 |
| |
|
C. |
18 |
D. |
36 |
| |
|
Hint |
|
| |
6. |
What are the prime factors of 810? |
| |
|
A. |
3, 5 |
B. |
2, 3, 5 |
| |
|
C. |
2, 5, 9 |
D. |
3, 4, 5 |
| |
|
Hint |
|
| |
7. |
Write the decimal eighty-one thousandths in standard form. |
| |
|
A. |
81,000 |
B. |
0.081 |
| |
|
C. |
0.0081 |
D. |
0.81 |
| |
|
Hint |
|
| |
8. |
Find 3.2 ÷ 8. |
| |
|
A. |
0.004 |
B. |
0.4 |
| |
|
C. |
40 |
D. |
0.04 |
| |
|
Hint |
|
| |
9. |
Find 5.0 ÷ 2. |
| |
|
A. |
0.25 |
B. |
2.5 |
| |
|
C. |
25 |
D. |
250 |
| |
|
Hint |
|
| |
10. |
Find 6.3 ÷ 4. |
| |
|
A. |
0.1575 |
B. |
1.575 |
| |
|
C. |
157.5 |
D. |
15.75 |
| |
|
Hint |
|
|
|