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

**Fill in the blanks:**

**0.2 x 0.3 = —————****5.3 x 0.05 = ————-****2.05 x 0.52 = ———–****100 x 2.2 = ———-**

Answer the following:**The side of an equilateral triangle is 2.5 cm. Find its perimeter?****The length of a rectangle is 6.5 cm and its breadth is 3.1 cm. What is the area of the rectangle?****Find the product of 1.7 and 2.5****If a bottle holds 1.5 liters of water, how much water do 4 such bottles hold?****A car travels 0.75 km in one minute. How far will it travel in 12 minutes?****A piece of cloth are 2.5 meters wide and 3.4 meters long. What is the area of the cloth?**

**ANSWERS:**

- 0.06
- 0.265
- 1.066
- 220
- Length of each side = 2.5 cm

Perimeter = 3 x 2.5 cm = 7.5 cm - Length = 6.5 cm

Breadth = 3.1 cm

Area = length x breadth = 6.5 x 3.1 = 20.15 sq. cm - 1.7 x 2.5 = 4.25
- 1.5 x 4 = 6

The 4 bottles hold 6 litres of water. - Distance travelled in one minute = 0.75 km

Distance travelled in 12 minutes = 0.75 x 12 = 9km - Width = 2.5 m

Length = 3.4 m

Area = length x breadth = 3.4 x 2.5 = 8.5 sq. meter