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Home › Grade7 › Grade 7 Olympiad › Math Olympiad-Grade-7 › Calculations › Calculations Worksheet-7

Calculations Worksheet-7

Calculations Worksheet-7

 

  1. The smallest number that must be added to 803642 in order to obtain a multiple of 11 is :

(a) 1                     (b) 4                    (c) 7                    (d) 9

 

  1. Which of the following numbers should be added to 11158 to make it exactly divisible by 77 ?

(a) 5                    (b) 7                    (c) 8                    (d) 9

  1.  

The least number which must be subtracted from 6709 to make it exactly divisible by 9 is:

(a) 2                    (b) 3                    (c) 4                    (d) –5

 

  1. What least number must be subtracted from 427398 so that the remaining number is divisible by 15 ?

(a) 3                    (b) 6                    (c) 11                   (d) 16

 

  1. What least number must be subtracted from 13294 so that the remainder is exactly divisible by 97 ?

(a) 1                     (b) 3                    (c) 4                    (d) 5

 

  1. When the sum of two numbers is multiplied by 5, the product is divisible by 15. Which one of the following pairs of numbers satisfies the above condition ?

(a) 240, 335      (b) 250, 341      (c) 245, 342      (d) None of these

 

  1. The least number by which 72 must be multiplied in order to produce a multiple of 112, is:

(a) 6                    (b) 12                  (c) 14                  (d) 18

 

  1. The number of times 99 is subtracted from 1111 so that the remainder is less than 99, is :

(a) 10                  (b) 11                   (c) 12                  (d) 13

 

  1. Find the number which is nearest to 457 and is exactly divisible by 11.

(a) 450               (b) 451                (c) 460               (d) 462

 

  1. The number nearest to 99547 which is exactly divisible by 687 is :

(a) 98928          (b) 99479          (c) 99615           (d) 100166

 

  1. What largest number of five digits is divisible by 99 ?

(a) 99909          (b) 99981           (c) 99990          (d) 99999

 

  1. The smallest number of five digits exactly divisible by 476 is :

(a) 10000          (b) 10472           (c) 10476           (d) 47600

 

  1. On dividing a number by 999, the quotient is 366 and the remainder is 103. The number is :

(a) 364724        (b) 365387        (c) 365737         (d) 366757

 

  1. On dividing 4150 by a certain number, the quotient is 55 and the remainder is 25. The divisor is :

(a) 65                  (b) 70                 (c) 75                  (d) 80

 

  1. A number when divided by the sum of 555 and 445 gives two times their difference as quotient and 30 as the remainder. The number is :

(a) 1220             (b) 1250             (c) 22030          (d) 220030

 

  1. A four–digit number divisible by 7 becomes divisible by 3, when 10 is added to it. The largest such number is :

(a) 9947             (b) 9987             (c) 9989             (d) 9996

 

  1. A number when divided by 114 leaves the remainder 21. If the same number is divided by 19, then the remainder will be :

(a) 1                     (b) 2                    (c) 7                    (d) 21

 

  1. A number when divided by 296 gives a remainder 75. When the same number is divided by 37, then the remainder will be :

(a) 1                     (b) 2                    (c) 8                    (d) 11

 

  1. A number when divided by 119 leaves 19 as remainder. If the same number is divided by 17, the remainder obtained is :

(a) 2                    (b) 3                    (c) 7                    (d) 10

 

  1. A number when divided by 899 gives a remainder 63. If the same number is divided by 29, the remainder will be :

(a) 3                    (b) 4                    (c) 5                    (d) 10

 

Answer Key:

(1)-(c); (2)-(b); (3)-(c); (4)-(a); (5)-(d); (6)-(b); (7)-(c); (8)-(b); (9)-(d); (10)-(c); (11)-(c); (12)-(b); (13)-(c); (14)-(c); (15)-(d); (16)-(c); (17)-(b); (18)-(a); (19)-(a); (20)-(c)