# Knowing Our Numbers

16. For 500 which symbol is used in Roman system

• (A) L
• (B) C
• (C) M
• (D) D

15. The symbol M in Roman numeral stands for:

• (A) 100
• (B) 500
• (C) 1000
• (D) 50

14. The product of the place values of two 2’s in 428721 is

• (A) 4
• (B) 40000
• (C) 400000
• (D) 40000000

13. The difference between the face value and place value of 4 in 2416 is

• (A) 404
• (B) 396
• (C) 3000
• (D) 2996

12. Consider the following statements:

(i) Ascending order means arrangement from the smallest to the greatest

(ii) Ascending order means arrangement from the greatest to the smallest

(iii) Descending order means arrangement from the greatest to the smallest

(iv) Descending order means arrangement from the smallest to the greatest

• (A) All statements are true
• (B) All statements are false
• (C) Only statements (i) and (iii) are true
• (D) Only statements (ii) and (iv) are true

11. Correct ascending order of 847, 9754, 8320, 571 is

• (A) 571, 8320, 847, 9754
• (B) 571, 847, 8320, 9754
• (C) 9754, 847, 8320, 571
• (D) 9754, 8320, 847, 571

10. Correct descending order of 5000, 7500, 85400, 7861 is

• (A) 5000, 7500, 85400, 7861
• (B) 85400, 7500, 7861, 5000
• (C) 85400, 7861, 7500, 5000
• (D) 7861, 7500, 7861, 5000

9. The largest number from the numbers 4578, 4785, 5748, 5487 when arranged in descending order is

• (A) 4578
• (B) 4785
• (C) 5748
• (D) 5487

8. Estimate 734 + 998 by rounding off the nearest tens

• (A) 1730
• (B) 1740
• (C) 1750
• (D) 1760

7. Estimate 636 + 988 by rounding off the nearest tens

• (A) 1630
• (B) 1640
• (C) 1650
• (D) 1660

6. Estimate 574 + 676 by rounding off the nearest tens

• (A) 1230
• (B) 1240
• (C) 1250
• (D) 1260

5. Estimation of the quotient 86 ÷ 9 to nearest 10

• (A) 90
• (B) 10
• (C) 80
• (D) None of these

4. When 1787 is rounded off to nearest tens, we get

• (A) 1790
• (B) 1780
• (C) 1700
• (D)1800

3. What must be subtracted from 11010101 to get 2635967?

• (A) 934134
• (B) 7383414
• (C) 8374134
• (D) 937414

2. The sum of the number 765432 and the number obtained by reversing its digit is

• (A) 930865
• (B) 980356
• (C) 999999
• (D) 9999998

1. Keeping the place of 6 in the number 6350947 same, the smallest number obtained by rearranging other digits is

• (A) 6975430
• (B) 6790435
• (C) 6034759
• (D) 6340759