
Example: Show that 2.3 = 2.29. Solution: Let x = 2.29 = 2.299999.........I Multiply equation I by 100 on both sides, we get 100x = 229.99999..........II Multiply equation I by 10 on both sides, we get 10x = 22.99........III Subtracting II from III, we get 90x = 207 x = 207/90 x = 23/10 x = 2.3
Directions: Solve the following questions. Also write at least 10 examples of your own. 1. Show that 0.6 = 0.59. 2. Show that 0.2 = 0.19. 3. Show that 6 = 5.9. 4. Show that 27 = 26.9. 5. Show that 0.027 = 0.0269. 6. Show that 0.65 = 0.649. 7. Show that 6.58 = 6.579. 8. Show that 15.1 = 15.09. 9. Show that 9.46 = 9.459.
10. Show that 14.8 = 14.79. 