CBSE Class 5 Mathematics Decimal And Average Worksheet

I. Fill in the blanks :

1. To multiply a decimal fraction by 10 we shift the decimal point to the right by ___________ place.

2. To multiply a decimal fraction by 1000 we shift the decimal point to the __________ by 3 places.

3. 0.8 x 10 = ____________

4. 6.5 x 100 = ____________

5. 0.95 x 1000 = ____________

6. 2.8 x __________ = 280

7. 8.45 x _________ = 84.5

8. 0.46 x __________ = 46

9. 1.98 x _____________ = 0

10. __________ x 1 = 3.9

11. 0.8 x 5 = ___________

12. 5.9 x 3.7 = 3.7 x _______

13. To divide a decimal fraction by 10, we shift the decimal point to the ____________ by one place.

14. To divide a decimal fraction by 100, we shift the decimal point to the left by ______________ places.

15. 1.5 ÷ 10 = ___________

16. 25. 6 ÷ 1000 = __________

17. 0.39 ÷ 100 = ___________

18. 5.92 ÷ _____________ = 0.0592

19. 23.9 ÷ __________ = 2.39

20. _________ ÷ 100 = 25.35

II. Find the product

a. 4.48 x 390

b. 0.8 x 25

c. 3.5 x 96

d. 107.6 x 32

e. 3.9 x 0.6

f. 0.08 x 10.9

g. 3.75 x 4.7

h. 4.36 x 0.526

i. 7.98 x 46

III. Divide and find the quotient

a. 3.784 ÷ 4

b. 1.92 ÷ 25

c. 0.0075 ÷ 125

d. 17.76 ÷ 32

e. 0.9 ÷ 900

f. 819.6 ÷ 40

g. 1.2 ÷ 300

h. 1.05 ÷ 1.5

i. 18 ÷ 0.9

j. 11.59 ÷ 19

k. 480 ÷ 9.6

l. 545.1 ÷ 600

IV If 39 x 27 = 1053, find the product of each of the following and fill in the blanks:

a. 3.9 x 27 = ___________

b. 0.39 x 2.7 = __________

b. 3.9 x 2.7= ___________

d. 0.39 x 0.27 = ___________

e. 39 x 0.27 = __________

f. 3.9 x 0.27 = __________

V. Fill in the blanks :

1. The ______________ is a measure for characterising a group of numbers with one number.

2. An ______________ gives us an idea of general standard of a group.

3. Average of 4 and 6 is ______________.

4. The average of first 2 odd numbers is ______________.

5. The average of first 2 even numbers is ______________.

VI. Find the average of the following set of numbers.

a. 25, 30, 35, 40 

b. 23, 27, 31, 35, 38

c. 15 ℓ, 27 ℓ, 30 ℓ

d. 3.5, 4.6, 6.2, 7.8, 5.4

e. Rs. 24.50, Rs. 32, Rs. 35.50, Rs. 13.50 Rs. 35, Rs. 29.50

VII Do the following

a. The age of 4 children in a group is 12 years, 15 years, 13 years and 16 years. Find their average age.

b. The height of 5 boys in a class are 150 cm, 145 cm, 138 cm, 140 cm, 127 cm. Find the average height of a child in the group

c. The sum of 5 numbers is 180. Find their average.

d. The total marks obtained by Anil in 6 subject is 546. Find his average mark.