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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
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.
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?
Name 5 things that we usually buy -
| In Grams | |
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 |
| In Kilograms | |
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 |
Which is the heaviest thing you have seen?
Now imagine what happened next and complete the story. Discuss with your friends how Vaidika’s daughter found the weight of the elephant.
Anamika wants to weigh this chair using the weighing machine. Can you suggest a way for doing this?
| Postal Rates |
| Postal Items | Postal Rates (in Rs.) |
| Single Post Card | 0.50 |
| Printed Post Card | 6.00 |
| Inland Letter | 2.50 |
|
Letter weighing - i) 20 grams or less ii) For every additional 20 grams |
5.00 2.00 |
|
Parcel weighing - i) 50 grams or less ii) For every additional 50 grams |
5.00
3.00 |
How much will you have to pay for stamps on a letter weighing 50 grams?
Akash wants to send a parcel of the Math Magic textbook to his friend Rani in Chennai. The book weighs 200 g. See the chart to find the cost of posting the book.
The chart shows the height and weight of children between 6 and 10 years old.
| Name | Age | Height | Weight |
| Temshula | 6 | 3 feet, 7 inches | 16 kg |
| Sreekunth | 10 | 4 feet, 3 inches | 23 kg |
| Rabiya | 6 | 3 feet, 10 inches | 17 kg |
| Vineet | 8 | 3 feet, 11 inches | 19.5 kg |
| Kavita | 9 | 3 feet, 10 inches | 20 kg |
Now, you also fill the table by finding out the age, height and weight of any five friends.
