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

Mannu and Jaiju put a pencil and geometry box in the two pans of the balance. Which pan will go down? Why? Draw a picture to show it.

Make pairs of different things and use the balance to decide which is heavier. First guess which thing will take the pan down and then check with your balance.

Make groups of three things. For example - eraser, ball and paper. Use the balance to arrange them in order of weight-the lightest, the one with in-between weight, the heaviest.

Complete the table with at least five examples.

Can you find your own weight using this balance?

Get a new cake of soap. The packet will have the weight written on it. You can use this soap to make your own different weights.
The soap weighs grams(g).

Take a small plastic packet.

Put it in one pan of the balance. Put the soap in the other pan. Slowly add sand to the packet till the pans are balanced.

Close the packet with a rubber band or string. Now stick a strip of paper and write ‘ g’ on it.

If you put the soap and the weight you just made together in a pan, how many grams will both these weigh?

Use your weights to weigh different things and write in your notebook.

Which pan of the balance will go down? Show by drawing an arrow.

Is the weight on any of the pans equal to 1 kilogram? Mark it.

 How many grams are there in 1 kg?

Mridul and Lokesh are trying 70 ÷ 5 in a different way.

Lokesh writes - First, I give Rs 5 to each.

How will Lokesh distribute the rest of the money? Complete it.

So, each child gets 5 + 6 +______ =______ rupees. 

Now use your own method to divide Rs 70 equally among 5 people. If you want you can start by giving Rs 2 to each. Or you can even start with Rs 11 to each.

Can you start with Rs 15 to each?

`5")"overline( 65 " ")`

84 ÷ 2

`3")"overline( 69 " ")`

90 ÷ 6

`4")"overline( 72 " ")`