Advertisements
Advertisements
Question
First guess the answer and then calculate:
69 × 52 = ?
Advertisements
Solution
On guessing 69 × 52, the numbers will be near to 70 × 50 = 3500
Calculation-
| 60 | 9 | |
| 50 | 60 × 50 | 9 × 50 |
| 3000 | 450 | |
| 2 | 60 × 2 | 9 × 2 |
| 120 | 18 |
By adding the numbers in third and fifth rows you will get
3000 + 450 + 120 + 18 = 3588
So, 69 × 52 = 3588.
APPEARS IN
RELATED QUESTIONS
What is the most difficult thing in your Maths book?
What do you think is the easiest lesson in maths?
Hariya and Babu want to buy a handcart for Rs 300.
 |
 |
Who has to pay back more - Hariya or Babu?
How Much does Kiran Earn from 9 Rickshaws in a Day?
In a week how much does Kiran earn from one rickshaw?
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?
First guess the answer and then calculate:
142 × 5 = ?
First guess the answer and then calculate:
382 × 3 = ?
First guess the answer and then calculate:
4 × 206 = ?
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.
