question_answer2) Write first five multiples of (a) 5 (b) 8 (c) 9
View Answer play_arrowquestion_answer3) Match the items in column 1 with the items in column 2.
Column I Column II (i) 35 (a) Multiple of 8 (ii) 15 (b) Multiple of 7 (iii) 16 (c) Multiple of 70 (iv) 20 (d) Factor of 30 (v) 25 (e) Factor of 50 (f) Factor of 20question_answer4) Find all the multiples of 9 upto 100.
View Answer play_arrowquestion_answer8) Write down separately the prime and composite numbers less than 20.
View Answer play_arrowquestion_answer9) What is the greatest prime number between 1 and 10?
View Answer play_arrowquestion_answer10) Express the following as the sum of two odd primes. (a) 44 (b) 36 (c) 24 (d) 18
View Answer play_arrowquestion_answer25) Find the common factors of (a) 4, 8 and 12 (b) 5, 15 and 25
View Answer play_arrowquestion_answer26) Find first three common multiples of (a) 6 and 8 (b) 12 and 18
View Answer play_arrowquestion_answer27) Write all the numbers less than 100 which are common multiples of 3 and 4.
View Answer play_arrowquestion_answer30) A number is divisible by 12. By what other numbers will that number be divisible?
View Answer play_arrowquestion_answer32) Here are two different factor trees for 60. Write the missing numbers. (a) (b)
View Answer play_arrowquestion_answer33) Which factors are not included in the prime factorization of a composite number?
View Answer play_arrowquestion_answer34) Write the greatest 4-digit number and express it in terms of its prime factors.
View Answer play_arrowquestion_answer42) I am the smallest number, having four different prime factors. Can you find me?
View Answer play_arrowquestion_answer49) Determine the smallest 3-digit number which is exactly divisible by 6, 8 and 12.
View Answer play_arrowquestion_answer50) Determine the greatest 3-digit number exactly divisible by 8, 10 and 12.
View Answer play_arrowquestion_answer54) Find the smallest 4-digit number which is divisible ay 18, 24 and 32.
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