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If (31+15)+\ x=31+(15+23), then by using...

If `(31+15)+\ x=31+(15+23),` then by using associativity of addition `x=` (a )46 (b) 38 (c) 23 (d) 69

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RD SHARMA-OPERATIONS ON WHOLE NUMBERS-All Questions
  1. Which one of the following is not a natural number? (a)1    (b)   ...

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  2. If n is an odd natural number greater than 1, then the product of it...

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  3. The number of whole number between the smallest whole number and the...

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  4. If x+12=12+7,\ then the commutativity of addition x= (a) 12 (b) ...

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  5. If (31+15)+\ x=31+(15+23), then by using associativity of addition x...

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  6. What is the multiplicative identity element in the set of whole numb...

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  7. What is the additive identity element in the set of whole numbers? ...

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  8. Additive inverse of 28 is (a) 1/(28) (b) 0 (c) -28 (d) 82

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  9. Which of the following is not zero? (a) 0\ x\ 0 (b) 0/2 (c)...

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  10. Determine the product of the greatest number of three digits and th...

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  11. Simplify 754\ x\ 845+754\ x\ 155 by using distributivity of multipl...

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  12. Determine the following sum by using suitable rearrangement: 2+3+4+...

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  13. Shikkha withdraw Rs. 1,00,000 from her bank account. She purchased ...

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  14. Find 15908\ x\ 542=

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  15. Divide 57086 by 247

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  16. On dividing 55390 by 299, the remainder is 75. Find the quotient

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  17. Fill in the blanks: The sum of two odd numbers is an ............... n...

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  18. The product of an odd number and even number is an ............ num...

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  19. Property 7 (DIvision Algorithm) If a whole number a is divided by a no...

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  20. A number when divided by 12 gives 7 as quotient and 9 as remainder....

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