# Number Manipulation Practice

- Posted by Brian Stocker MA
- Date Published May 9, 2014
- Date modified April 4, 2019
- Comments 5 comments

### Practice Questions

**1. What is 6 more than 1/3 of 25?**

a. 8.33

b. 15

c. 14.33

d. 18

**2. What number is the largest? **

a. 50% of 50

b. 2/5 of 200

c. 0.2 portion of 20

d. 1/5th of 30

**3. What is the smallest value? **

a. 0.4 portion of 200

b. 50% of 100

c. 0.06 portion of 2000

d. 2% of 1000

**4. What number is the largest? **

a. 5 % of 400

b. 25% of 4000

c. 2 % of 500

d. 8% of 1000

**5. What is the smallest value? **

a. 4 % of 4

b. 5 % of 5

c. 0.3% of 12

d. 1/5 of 100

**6. What is 8 more than 2/5 of 20? **

a. 10

b. 12

c. 16

d. 8

**7. What is 6 more than 50% of 50? **

a. 31

b. 41

c. 25

d. 26

**8. What number subtracted from 100 leaves 7 more than 3/4 of 40? **

a. 50

b. 63

c. 47

d. 75

**9. What number divided by 5 is 1/4 of 100?**

a. 125

b. 150

c. 75

d. 225

**10. 1/5 of what number is 5 times 10?**

a. 150

b. 200

c. 250

d. 100

**11. What number multiplied by 5 is 10 less than 52?**

a. 8.4

b. 10.24

c. 20

d. 22.5

**12. What number subtracted by 25 is 1/5 of 50?**

a. 125

b. 150

c. 50

d. 35

**13. What number is 15 less than 3/5 of 40?**

a. 42

b. 17

c. 9

d. 18

**14. What number is 10 times 1/2 of 60?**

a. 100

b. 300

c. 250

d. 75

**15. 2/3 of what number added to 10 is 3 times 15?**

a. 50

b. 52.5

c. 65

d. 72.8

### Answer Key

**1. C
**1/3 of 25 = 8.33 + 6 = 14.33

**2. B
**a. 50% of 50 = 25

b. 2/5 of 200 = 80

c. 0.2 portion of 20 = 4

d. 1/5 of 30 = 6B is the largest.

**3. D
**a. 0.4 portion of 200 = 80

b. 50% of 100 = 50

c. 0.06 portion of 2000 = 120

d. 2% of 1000 = 20D is the smallest

**4. B
**a. 5% of 400 = 20

b. 25% of 4000 = 1000

c. 2% of 500 = 10

d. 8% of 1000 = 80

B is the largest.

**5. C
**a. 4% of 4 = .16

b. 5% of 5 = 0.25

c. 0.3% of 12 = 0.036

d. 1/5 of 100 = 20

C is the smallest.

**6. C
**2/5 of 20 = 8 + 8 = 16

**7. A
**50% of 50 = 25 + 6 = 31

**8. B
**3/4 of 40 = 30 + 7 = 37100 – 37 = 63

**9. A
**1/4 X 100 = 2525 X 5 = 125

**10. C
**5 X 10 = 501/5Z = 50Z = 250

**11. A
**5z = 52 – 10Z = 10.4 – 2Z = 8.4

**12. D
**Z – 25 = 1/5 X 50Z – 25 = 10Z = 35

**13. C
**Z -15 = 3/5 X 40Z – 15 = 24Z = 24 – 15Z = 9

**14. B
**Z = 10 X (1/2 X 60)Z = 10 X 30Z = 300

**15. B
**2/3Z + 10 = 3 X 152/3 Z = 45 – 10Z = 35 X 3/2Z = 52.5

**Written by:**Brian Stocker MA, Complete Test Preparation Inc.

## 5 Comments

I really like the idea of this resource. Thank you!

I love the idea of this resource.

thanks for the information!

Great post.

Thanks and good luck.

number three is supposed to be answer a. 0.4 percent of 200 is 0.8 not 80. but over all i think this is a great resource and i know it has helped me tremendously in studying for the hspt.