ICSE Class 6 Mathematics - Natural and Whole Numbers - Test 1 (Basic)
1. Which of the following shows natural numbers?
A. 1, 2, 3, 4, ...
B. 0, -1, -2, -3, ...
C. 1/2, 1/3, 1/4, ...
2. Which of the following shows whole numbers?
A. 1, 2, 3, 4, ...
B. 0, 1, 2, 3, ...
C. -1, 0, 1, 2, ...
3. The smallest natural number is:
A. 0
B. 2
C. 1
4. The smallest whole number is:
A. 0
B. 1
C. 10
5. Which number is a whole number but not a natural number?
A. 1
B. 0
C. 5
6. What is the successor of 63?
A. 62
B. 65
C. 64
7. What is the predecessor of 85?
A. 84
B. 86
C. 80
8. Which whole number has no predecessor?
A. 1
B. 0
C. 2
9. Which statement is true for whole numbers?
A. Only 0 has a successor
B. No whole number has a successor
C. Every whole number has a successor
10. Which statement is correct?
A. There is no greatest whole number
B. 100 is the greatest whole number
C. 0 is the greatest whole number
11. On a number line, whole numbers start from:
A. 1
B. 0
C. -1
12. What is 14 + 9?
A. 21
B. 22
C. 23
13. What is 8 x 6?
A. 48
B. 46
C. 56
14. Which operation is not always closed for whole numbers?
A. Addition
B. Subtraction
C. Multiplication
15. What is 37 + 0?
A. 0
B. 1
C. 37
16. What is 72 x 1?
A. 72
B. 1
C. 73
17. What is 91 x 0?
A. 91
B. 0
C. 1
18. Which property is shown by 15 + 6 = 6 + 15?
A. Multiplicative identity
B. Closure property of subtraction
C. Commutative property of addition
19. Which statement is correct?
A. 9 x 4 = 4 x 9
B. 9 - 4 = 4 - 9
C. 9 ÷ 4 = 4 ÷ 9
20. Which number should be added to 42 to get 42?
A. 1
B. 0
C. 42