# CBSE Class 5 Mathematics Worksheet/Practice Problems

## Model Questions/Extra Questions for Practice

Answer the following:

- Write the number name and expanded form of 80437
- Write the numeral: Eighty thousand thirty two
- Write the greatest and smallest 6 digit number
- Write the place value of 5 in 35768
- Write all factors of 12
- Write first five multiples of 7
- Perimeter of a square is 84 cm. Find the length of its side?
- Find the LCM of 4 and 6
- Find the area of a rectangle whose length is 30cm and breadth is 5 cm
- A square carrom board has a perimeter 320cm. Find its area?
- Manu drinks 8 glasses of water every day. How many glasses will he drink in one month?
- Find the HCF of 36 and 12
- Nithya has 25.75 rupees. How much money does she require to make a sum of 50 rupees?
- A table fan costs 2325 rupees. Find the cost of one dozen table fans?
- A tray can hold 16 marbles. How many trays are required to keep 256 marbles?
- Cost of 1 kg apples is 82 rupees. How much kilograms of apples can we buy with 500 rupees? How much amount will be left with us?
- Find the volume of a cube of side 5cm?
- Find the volume of a cuboid of length 3cm, breadth 2 cm and height 4cm?
- Find the area and perimeter of a square of side 10 cm?
- Write all 3 digit numbers which look the same on half turn?

ANSWERS:

- Number name: Eighty thousand four hundred thirty seven

Expanded form: 80000 + 400 + 30 + 7 - 80032
- Greatest number: 999999

Smallest number: 100000 - 5000
- Factors of 12 are 1, 2, 3, 4, 6 and 12
- Multiples of 7 are 7, 14, 21, 28 and 35.
- Length of each side = 84/4 = 21cm
- Multiples of 4 are 4, 8, 12, 16, 20, 24, 28, ———–

Multiples of 6 are 6, 12, 18, 24, 30, 36, ———-

Common Multiples are 12, 24, ———

LCM = 12 - Area of a rectangle = length x breadth = 30 x 5 = 150 sq cm
- Length of each side = 320/4 = 80 cm

Area of a square = side x side = 80 x 80 = 6400 sq cm - Number of glasses of water in one day = 8

Number of glasses of water he will drink in one month = 30 x 8 = 240 glasses - Factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18 and 36

Factors of 12 are 1, 2, 3, 4, 6 and 12.

Common factors are 1, 2, 3, 4, 6 and 12.

HCF = 12 - 50 – 25.75 = 24.25 rupees
- Cost of one table fan = 2325 rupees

Cost of 1 dozen table fans = 2325 x 12 = 27,900 rupees - Number of marbles in one tray = 16

Number of trays required to keep 256 marbles= 256/16 = 16 trays - Cost of 1 kg apples = 82 rupees

Quantity of apples we can buy for 500 rupees = 500/82 = 6 kg

Amount left with us = 8 rupees - Volume = 5 x 5 x 5 = 125 cubic cm
- Volume of a cuboid = l x b x h = 3 x 2 x 4 = 24 cubic cm
- Area of a square = side x side = 10 x 10 = 100 sq cm

Perimeter of a square = 4 x side = 4 x 10 = 40 cm - 111, 888, 101, 808, 818, 181