Primary School (English Medium) इयत्ता ४ - CBSE Question Bank Solutions for Mathematics

Amina's water bottle holds one litre of water. She drank 250 mL of water and her friend Govind drank 150 mL. How much water is left in her bottle?

Yusuf runs a tea shop. For making a glass of tea he uses 20 mL of milk. Yesterday he made 100 glasses of tea. How much milk did he use?

Radha's grandma was ill. The doctor gave her a bottle with 200 mL of medicine. She has to take the medicine every morning for 10 days.
How many milliliters of medicine does she have to take every morning?

The table shows the water used in one day by a family of 5 people. They live in Goodallur village.

Total water used by them.

How many liters of water does your family use in a day? Guess and fill in this table.

Is there any tap in your school or your home which is leaking?

How much water do you think we waste through a leaking tap?

Place your litre jar below the leaking tap so as to catch all the drops in the bottle. Note the time. After one hour check, how much water is in the bottle?

Find out how much water is wasted in a day?

1. In a week?
2. In a month?
3. In a year?

Chelannur village has a milk society. Geetha and Ammini went there to buy 4 litres of milk. But the man could not find the one-litre measure. He had only a 3 litre and a 5-litre bottle with him. But he gave them exactly 4 litres of milk. Explain how he did this.

You must have seen many such round things around you. List some more in your notebook.

Have you ever gone to a bangle shop?

Guess which of these bangles is of your size.

Take a wire and make a bangle for yourself. Can your madam or mother wear this bangle?

A bangle can be used to trace a circle. What are the other things around you that you can use to trace a circle?

Trace a circle with the help of some of these in your notebook or on the ground.

1. Which thing makes the smallest circle?
2. Which thing makes the biggest circle?
   

Do you play these games?

Which song do you sing when you play these?

Play these games in your school.

Why do we make a circle in each of these games?