Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 892 · 40 sums

The trick (Ekanyunena Purvena): Write the number with as many digits as there are nines (add zeros in front if needed). Left part: the number minus 1. Right part: “all from 9 and the last from 10” of the number. More digits than the nines (237 × 99)? Split off as many digits as there are nines (2 | 37): left = number − (front part + 1) = 234, right = complement of 37 = 63 → 23463.

1. 1.2 × 9 =
2. 2.1233 × 99 =
3. 3.2 × 9 =
4. 4.97 × 99 =
5. 5.222 × 9 =
6. 6.33 × 99 =
7. 7.655 × 999 =
8. 8.213 × 999 =
9. 9.59 × 99 =
10. 10.6 × 9 =
11. 11.58 × 99 =
12. 12.7 × 9 =
13. 13.178 × 99 =
14. 14.2788 × 99 =
15. 15.81 × 99 =
16. 16.614 × 999 =
17. 17.5 × 9 =
18. 18.4 × 9 =
19. 19.55 × 99 =
20. 20.95 × 99 =
21. 21.18 × 99 =
22. 22.166 × 999 =
23. 23.7 × 9 =
24. 24.35 × 9 =
25. 25.8508 × 999 =
26. 26.6 × 9 =
27. 27.8 × 9 =
28. 28.22481 × 999 =
29. 29.57 × 99 =
30. 30.97 × 99 =
31. 31.104 × 9 =
32. 32.1599 × 999 =
33. 33.3 × 9 =
34. 34.7 × 9 =
35. 35.1914 × 99 =
36. 36.5 × 9 =
37. 37.379 × 999 =
38. 38.81 × 99 =
39. 39.85 × 99 =
40. 40.34 × 99 =

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