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प्रश्न
How much does a postcard cost?
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उत्तर
The cost of a postcard is Re 1.
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संबंधित प्रश्न
Now, you also make your own balance. Write down how you made it. Also draw a picture of your balance in the box below.
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.
| Lightest | In-between weight | Heaviest |
| Paper | Eraser | Ball |
Can you find your own weight using this balance?
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.
Which pan of the balance will go down? Show by drawing an arrow.
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Guess and write the weight of each thing he bought - in g or kg.
| Items | Weight |
| Rice | 5 |
| Sugar | 1 |
| Mustard seeds | 10 |
| Wheat | 3 |
| Dal | 500 |
| Tea | 250 |
| Pepper | 25 |
Guess which is the heaviest-a real car, a bus or a tractor?
Now you show how Abdu will use these stone pieces to weigh —
3 kg of firewood.
Now you show how Abdu will use these stone pieces to weigh —
7 kg of firewood.
All oranges have equal weight. The two papayas have the same weight. The weights in the first and second balances are equal.
How many oranges balance the weight in the third?
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