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Can you instantly find the greatest and the smallest numbers?
8263,10097,9276,510260,1567
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Ans : greatest : 510260
Smallest: 1567
Use the given digits without repetition and make the greatest and smallest 4-digit numbers.
(a) 2, 8, 7, 4 (b) 7,0,1,3
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Ans :
Make the greatest and the smallest 4-digit numbers by using any one digit twice.
(a) 3, 8, 7 (b) 9, 0, 5
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Ans:
Arrange the following numbers in ascending order :
847, 9754, 8320, 571
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Ans: 571, 847, 8320, 9754
Arrange the following numbers in descending order :
5000, 7500, 85400, 7861
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Ans: 85400,7861,7500,5000
Insert commas suitably and write the names according to Indian System of Numeration: 87595762
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Ans= 8,75,95,762 (eight crore seventy-five lakhs ninety-five thousand seven hundred sixty-two)
How many milligrams make one kilogram?
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Ans : 10,00,000 milligrams make one kilogram.
A book exhibition was held for four days in a school. The number of tickets sold at the counter on the first, second, third and final day was respectively 1094,1812, 2050 and 2751. Find the total number of tickets sold on all the four days.
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Ans: 1094+1812+2050+2751 = 7,707 tickets
Shekhar is a famous cricket player. He has so far scored 6980 runs in test matches.He wishes to complete 10,000 runs. How many more runs does he need?
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Ans: 10,000-6980= 3,020 runs
Estimate each of the following using general rule: 730 + 998
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Ans: 1,700
Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate (by rounding off to nearest tens) :439 + 334 + 4,317
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Ans: 5,000
Estimate the following products using general rule: 578 × 161
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Ans: 1,20,000