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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.
Hariya and Babu want to buy a handcart for Rs 300.
 |
 |
Who has to pay back more - Hariya or Babu?
For 10 rickshaws she will get Rs 20 × 10 = Rs 200.
So, for 9 rickshaws, she will get Rs 200 – _____ = ______.
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/- |
How much will Kiran pay for a 31 kg newspaper?
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/- |
How much will Kiran pay for 42 kg newspaper?
| 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/- |
Kiran buys 1 kg iron for Rs 12 but sells it for Rs 14. How much does she earn when she sells 32 kg iron?
First guess the answer and then calculate:
37 × 18 = ?
First guess the answer and then calculate:
77 × 55 = ?
First guess the answer and then calculate:
4 × 206 = ?
