ICSE Class 6 Mathematics - Playing with Numbers - Test 2 (Intermediate)
1. Which of the following is a factor of 30?
A. 7
B. 8
C. 10
2. Which of the following is a multiple of 8?
A. 32
B. 34
C. 38
3. Which list shows all factors of 16?
A. 1, 2, 3, 4, 16
B. 1, 2, 4, 8, 16
C. 2, 4, 6, 8, 16
4. Which list shows the first four multiples of 7?
A. 7, 17, 27, 37
B. 1, 7, 14, 21
C. 7, 14, 21, 28
5. Which number is divisible by 3?
A. 372
B. 374
C. 376
6. Which number is divisible by 9?
A. 724
B. 729
C. 725
7. Which number is divisible by 6?
A. 351
B. 355
C. 354
8. Which number is divisible by both 2 and 5?
A. 640
B. 645
C. 642
9. Which of the following is a prime number?
A. 21
B. 19
C. 27
10. Which of the following is a composite number?
A. 17
B. 23
C. 25
11. Which is a factor pair of 28?
A. 4 and 7
B. 5 and 6
C. 3 and 9
12. Which is a common factor of 15 and 25?
A. 3
B. 5
C. 10
13. Which is a common multiple of 4 and 5?
A. 10
B. 15
C. 20
14. What is the HCF of 16 and 24?
A. 8
B. 6
C. 4
15. What is the LCM of 4 and 6?
A. 10
B. 12
C. 24
16. What is the prime factorization of 18?
A. 2 x 9
B. 3 x 6
C. 2 x 3 x 3
17. Which pair is co-prime?
A. 8 and 15
B. 6 and 12
C. 9 and 18
18. 48 stickers are packed equally in groups of 6. How many groups are formed?
A. 6
B. 8
C. 10
19. 315 is divisible by:
A. 2 and 5
B. 2 and 3
C. 3 and 5
20. Which number is divisible by 4?
A. 516
B. 518
C. 519