# Worksheet on Rounding Off Number

This worksheet will deal with rounding off number to 10, 100, 1000, rounding large numbers, decimal fractions, and correct to one and two decimal place. Hence it will provide students a comprehensive practice on rounding off number.

1. Round off the following numbers to nearest 10:

(a) 25

(b) 88

(c) 142

(d) 158

(e) 4736

Solution:

(a) 30

(b) 90

(c) 140

(d) 160

(e) 4740

2. Round off the following numbers to nearest 100:

(a) 787

(b) 969

(c) 1235

(d) 4889

(e)  89356

Solution:

(a) 800

(b) 1000

(c) 1200

(d) 4900

(e) 89400

3. Round off the following numbers to nearest 1000:

(a) 5697

(b) 7633

(c) 21453

(d) 75864

(e) 12463

Solution:

(a) 6000

(b) 8000

(c) 21000

(d) 76000

(e) 12000

4. Round off the following numbers to nearest 10000:

(a) 45676

(b) 23536

(c) 715896

(d) 986352

(e) 142362

Solution:

(a) 50000

(b) 20000

(c) 720000

(d) 990000

(e) 140000

5. Round off the following numbers to nearest 10 and 100:

(a) 986

(b) 576

(c) 5263

(d) 7459

(e) 9635

Solution:

(a) Nearest 10: 990

Nearest 100: 1000

(b) Nearest 10: 580

Nearest 100: 600

(c) Nearest 10: 5260

Nearest 100: 5200

(d) Nearest 10: 7460

Nearest 100:7500

(e) Nearest 10: 9640

Nearest 100: 9600

6. Round off the following decimal numbers to the nearest units place:

(a) 96.12

(b) 23.65

(c) 64.58

(d) 423.97

(e) 769.58

Solution:

(a) 96

(b) 24

(c) 65

(d) 424

(e) 770

7. Correct the following numbers to one decimal place:

a) 54.362

b) 123.569

c) 236.547

d) 9685.2365

e) 7870.2136

Solution:

(a) 54.400

(b) 123.600

(c) 236.500

(d) 9685.2000

(e) 7870.2000

8. Correct the following numbers to two decimal place:

(a) 86.412

(b) 75.963

(c) 789.632

(d) 752.145

(e) 990.868

Solution:

(a) 86.410

(b) 75.960

(c) 789.630

(d) 752.150

(e) 990.870

9. Round off the following numbers to nearest hundred thousand:

(a) 234,631

(b) 452,956

(c) 1,287,653

(d) 7,596,423

(e) 456,370

Solution:

(a) 200,000

(b) 500,000

(c) 1,300,000

(d) 7,600,000

(e) 500,000

10. Round off the following numbers to nearest million:

(a) 4,056,387

(b) 6,382,012

(c) 70,321,056

(d) 5,310,478

(e) 2,037,598

Solution:

(a) 4,000,000

(b) 6,000,000

(c) 70,000,000

(d) 5,000,000

(e) 2,000,000

11. Round off the following numbers to nearest ten million:

(a) 45,637,890

(b) 75,395,184

(c) 30,256,987

(d) 88,427,589

(e) 450,088,621

Solution:

(a) 50,000,000

(b) 80,000,000

(c) 30,000,000

(d) 90,000,000

(e) 450,000,000

12. Divide 58.98 by 7 and correct to one and two decimal places

Solution:

One decimal place = 8.4

Two decimal place = 8.43

13. Divide 500 by 3 and correct to nearest ones, one decimal place and two decimal places

Solution:

Nearest ones = 167

One decimal place = 166.7

Two decimal place =166..67

14. Multiply 8695 by 35 and round off to nearest tens, 100, 1000 and 10000.

Solution:

Nearest 10 = 304330

Nearest 100 = 304300

Nearest 1000 = 304000

Nearest 10000 = 300000

15. Multiply 7596 by 89 and round it off to nearest tens, 100, 1000, 10000 and 100000

Solution:

Nearest 10 = 676040

Nearest 100 = 676000

Nearest 1000 = 676000

Nearest 10000 = 680000