Page 1 - Worksheet
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SAI INTERNATIONAL SCHOOL

                                                                  Class VI



               Sub: Mathematics

               Ch-3 Playing With Numbers

               Worksheet-1


               1.     The sum of first three common multiples of 3, 4 and 9 is
                      (a) 108     (b) 144     (c) 252     (c) 216
               2.     A number is divisible by 5 and 6. It may not be divisible by
                      (a) 10       (b) 15      (c) 30       (d) 60
               3.     The HCF of two coprime numbers is   _______.

               4.     The numbers having more than two factors are called _________ numbers.
               5.     What is the smallest prime number which is even?
               6.     What is the HCF of two consecutive(a) Even numbers (b) Odd numbers? (2marks)
               7.     Write all the factors of the given number:  24           (2marks)
               8.     Using divisibility tests, determine which of following numbers are divisible by 6:
                      (a) 297144 (b) 1258                             (3marks)
               9.     Write the smallest 5-digit number and express it in the form of its prime factors.
                      (3marks)
               10.    Write the smallest digit and the greatest digit in the blank space of each of the
                      following numbers so that the number formed is divisible by 3.
                      (a) __ 6724 (a) 4765 __ 2
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