CBSE Class 7 Mathematics/Decimals/Extra Questions for Practice/Worksheet

Fill in the blanks:

1. 0.2 x 0.3 = —————
2. 5.3 x 0.05 = ————-
3. 2.05 x 0.52 = ———–
4. 100 x 2.2 = ———-
   Answer the following:
5. The side of an equilateral triangle is 2.5 cm. Find its perimeter?
6. The length of a rectangle is 6.5 cm and its breadth is 3.1 cm. What is the area of the rectangle?
7. Find the product of 1.7 and 2.5
8. If a bottle holds 1.5 liters of water, how much water do 4 such bottles hold?
9. A car travels 0.75 km in one minute. How far will it travel in 12 minutes?
10. A piece of cloth are 2.5 meters wide and 3.4 meters long. What is the area of the cloth?

ANSWERS:

1. 0.06
2. 0.265
3. 1.066
4. 220
5. Length of each side = 2.5 cm
   Perimeter = 3 x 2.5 cm = 7.5 cm
6. Length = 6.5 cm
   Breadth = 3.1 cm
   Area = length x breadth = 6.5 x 3.1 = 20.15 sq. cm
7. 1.7 x 2.5 = 4.25
8. 1.5 x 4 = 6
   The 4 bottles hold 6 litres of water.
9. Distance travelled in one minute = 0.75 km
   Distance travelled in 12 minutes = 0.75 x 12 = 9km
10. Width = 2.5 m
    Length = 3.4 m
    Area = length x breadth = 3.4 x 2.5 = 8.5 sq. meter