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Observe the following : 1+2-3+4+5-6-7+...

Observe the following :
`1+2-3+4+5-6-7+8-9=-5`
Change one `-` sign as `+` sign to get the sum 9.

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NCERT EXEMPLAR-INTEGERS -Exercise
  1. Write the digits 0, 1, 2, 3, ..., 9 in this order and insert '+' or '-...

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  2. Write the integer which is its own additive inverse

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  3. Write six distinct integers whose sum is 7.

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  4. Write the integer which is 4 more than its additive inverse.

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  5. Write the integer which is 2 less than its additive inverse.

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  6. Write two integers whose sum is less than both the integers.

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  7. Write two distinct integers whose sum is equal to one of the integers.

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  8. Using number line, how do you compare (a) two negative integers? (b)...

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  9. Observe the following : 1+2-3+4+5-6-7+8-9=-5 Change one - sign as...

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  10. Arrange the following integers in the ascending order : -2,1,0,-3,+4...

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  11. Arrange the following integers in the descending order : -3,0,-1,-4,...

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  12. Write two integers whose sum is 6 and difference is also 6.

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  13. Write five integers which are less than -100 but greater than -150.

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  14. Write four pairs of integers which are at the same distance from 2 on ...

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  15. The sum of two integers is 30. If one of the integers is -42, then fin...

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  16. Sum of two integers is -80. If one of the integers is -90, then find t...

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  17. If we are at 8 on the number line, in which direction should we move t...

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  18. Using the number line, write the integer which is (a) 4 more than -5...

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  19. Find the value of 49-(-40)-(-3)+69

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  20. Subtract -5308 from the sum [(-2100) + (-2001)]

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