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Calculate the sum: 2+(-2)+2+(-2)+2+(-2)+...

Calculate the sum: `2+(-2)+2+(-2)+2+(-2)+` (i)if the number of terms is 140 (ii)if the number of terms is 125

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RD SHARMA ENGLISH-NEGATIVE NUMBERS AND INTEGERS-All Questions
  1. Find the value of: -12-[(-15)+(-2)+\ (-3)]

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  2. Calculate : 1-2+3-4+5-6+7-8+-...+19-20

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  3. Calculate the sum: 2+(-2)+2+(-2)+2+(-2)+ (i)if the number of terms is...

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  4. The sum of two integers is 48. If one of the integers is -24 , dete...

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  5. The sum of two integers is -396 . If one of them is 64, determine the ...

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  6. If Δ is an operation on integers such that for integers a\ a n d\ b ...

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  7. On a particular day, the temperature of Delhi at 10 a.m. was 13^0C ...

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  8. Subtract the first integer from the second in each of the following:...

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  9. Subtract the first integer from the second in each of the following:...

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  10. Subtract the first integer from the second in each of the following:...

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  11. Find the value of: (i)-27-(-23) (ii) -17-18-(-35)

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  12. Find the value of: (i) -12-(-5)-(-125)+270 (ii) 373+(-245)+(-373)+...

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  13. Find the value of: 1+(-475)+(-475)+(-475)+(-475)+1900 (-1)+(-304)+3...

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  14. Subtract the sum of -5020 and 2320 from -709

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  15. Subtract the sum of -1250 and 1138 from the sum of 1136 and -1272

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  16. From the sum of 233 and -147 , subtract -284

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  17. The sum of two integers is 238. If one of the integers is -122 , det...

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  18. The sum of two integers is -223 . If one of the integers is 172, find ...

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  19. Evaluate the following: (i)-8-24+31-26-28+7+19-18-8+33 (ii)-26-20+33...

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  20. Calculate: 1-2+3-4+5-6+...+15-16

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