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प्रश्न
Do it mentally and write the answers.
| 2 × 6 = ______ | 4 × 80 = ______ |
| 20 × 6 = ______ | 4 × 81 = ______ |
| 2 × 60 = ______ | 9 × 25 = ______ |
| 3 × 42 = ______ | 31 × 9 = ______ |
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उत्तर
| 2 × 6 = 12 | 4 × 80 = 320 |
| 20 × 6 = 120 | 4 × 81 = 324 |
| 2 × 60 = 120 | 9 × 25 = 225 |
| 3 × 42 = 126 | 31 × 9 = 279 |
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संबंधित प्रश्न
Ask people and find out the cost of a cup of tea-
- At a tea stall-
- At a hotel-
If a person who runs a tea stall earns Rs 30 a day, how much will he earn in 10 days? And in a month? How did you get the answer? Discuss.
Kiran has bought some junk from junk collectors.
Look at the rate list to see today's rates. Help Kiran to find out the cost of the junk.
| Rate-List | |
| Kind of Junk | Price of 1 kg |
| 1. Waste Paper... | Rs. 4/- |
| 2. Newspaper... | Rs. 5/- |
| 3. Iron... | Rs. 12/- |
| 4. Brass... | Rs. 170/- |
| 5. Plastic... | Rs. 10/- |
Find the cost of 23 kg of waste paper.
| Dinu's Rate-List | |
| Kind of Junk | Price of 1 Kg |
| 1. Newspaper... | Rs. 6/- |
| 2. Iron... | Rs. 14/- |
| 3. Brass... | Rs. 180/- |
| 4. Plastic... | Rs. 12/- |
| 5. Water paper... | Rs. 4.50/- |
How much money will Dinu pay for 32 kg iron?
I bought 1 kg newspaper for Rs 5, but sold it for Rs 6. How much money did I earn by selling 152 kg of a newspaper?
First guess the answer and then calculate:
37 × 18 = ?
First guess the answer and then calculate:
69 × 52 = ?
First guess the answer and then calculate:
142 × 5 = ?
First guess the answer and then calculate:
382 × 3 = ?
Kiran paid Rs. 919 to the junk collectors. When she sold the junk she got these notes and coins from Dinu.
Now you make a record in her diary.
Find out how much she earned this time.
