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Revision - Fractions, Decimals, Percentage, Approximation, etc.

Total questions: 30

Worksheet time: 30mins

Name
Class
Date
1.

Estimate the sum of 942 and 278 by rounding each number to the nearest hundred.

(a)  

2.

Approximate the product of 37 × 148 by rounding to the nearest ten.

(a)  

3.

What is 3,672 rounded to the nearest thousand?

a)

3500

b)

3700

c)

4000

4.

Round 5.789 to 2 decimal places.

(a)  

5.

Approximate 93,512 to 2 significant figures.

a)

94000

b)

93000

c)

90000

6.

Round 263 to the nearest ten.

a)

250

b)

260

c)

270

7.

Calculate the square root of 256 using the factorization method.

(a)  

8.

What is the square root of 144 plus the square of 7?

a)

61

b)

70

c)

73

9.

If y² = 81, find the value of y + 25.

(a)  

10.

Evaluate: ( 2/3 × 6/5 ) + 1 2/5. Express your answer as a mixed number.

(a)  

11.

Find the missing number: x² = 49.

a)

5

b)

7

c)

9

12.

Multiply: √121 × √36.

a)

77

b)

66

c)

88

13.

Convert 75% to a fraction in its simplest form.

(a)  

14.

Express 90% as a decimal.

(a)  

15.

What percentage of a loaf of bread did Mr. Jide eat if he ate 8 out of 16 slices?

a)

25%

b)

50%

c)

75%

16.

Convert 5/8 to a decimal.

(a)  

17.

Write the equivalent fraction and percentage for 0.25.

(a)  

18.

If 0.35 is expressed as a percentage, what is the result?

a)

3.5%

b)

35%

c)

350%

19.

A store has 500 apples, and 40% of them are sold. How many apples were sold?

(a)  

20.

There are 420 students in a school. 60% of them are girls. How many boys are in the school?

a)

168

b)

252

c)

180

21.

A car travels 5.2 km in 1 hour. How far does it travel in 4.5 hours?

(a)  

22.

A farmer planted 1.75 hectares of land with maize and 2.5 hectares with rice. What is the total land used?

a)

4.25 hectares

b)

3.25 hectares

c)

2.75 hectares

23.

A tailor bought 18 meters of fabric. If she uses 4.25 meters to sew a dress, how much fabric remains?

(a)  

24.

A football match lasted for 1.5 hours. How many minutes did it last?

a)

60 minutes

b)

75 minutes

c)

90 minutes

25.

What is 1.4 × 10?

(a)  

26.

Divide 8.4 by 4.

a)

2.1

b)

3.1

c)

4.2

27.

What is the sum of 3.75 and 6.8?

(a)  

28.

Convert 1 3/4 into a decimal.

a)

1.5

b)

1.75

c)

2.25

29.

If x = 15, find the value of 3x + 7.

(a)  

30.

What is the square of 9.5?

a)

90.25

b)

81

c)

92