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Without adding, find the sum: 1 + 3 + ...

Without adding, find the sum:
`1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19+ 21 + 23`

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ASHOK PUBLICATION ASSAM-Squares and Square Roots-EXAMPLE
  1. Without adding, find the sum: 1+ 3 + 5 + 7 + 9

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  2. Without adding, find the sum: 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 ...

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  3. Without adding, find the sum: 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 ...

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  4. Express 49 as the sum of 7 odd numbers.

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  5. Express 121 as the sum of 11 odd numbers.

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  6. How many numbers lie between squares of the following numbers? 12 an...

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  7. How many numbers lie between squares of the following numbers? 25 an...

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  8. How many numbers lie between squares of the following numbers? 99 an...

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  9. Find the square of the following numbers: 32

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  10. Find the square of the following numbers: 35

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  11. Find the square of the following numbers: 86

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  12. Find the square of the following numbers: 93

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  13. Find the square of the following numbers: 71

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  14. Find the square of the following numbers: 46

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  15. Write a Pythagorean triplet whose one member is 6

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  16. Write a Pythagorean triplet whose one member is 14

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  17. Write a Pythagorean triplet whose one member is 16

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  18. Write a Pythagorean triplet whose one member is 18

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  19. What could be the possible one's digits of the squares root of each of...

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  20. What could be the possible one's digits of the squares root of each of...

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