Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 888 · 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. 1.7 × 9 =
2. 2.3 × 9 =
3. 3.5029 × 999 =
4. 4.4 × 9 =
5. 5.275 × 999 =
6. 6.813 × 999 =
7. 7.964 × 999 =
8. 8.11151 × 999 =
9. 9.18831 × 999 =
10. 10.45 × 99 =
11. 11.861 × 99 =
12. 12.61 × 99 =
13. 13.1284 × 99 =
14. 14.86 × 99 =
15. 15.246 × 999 =
16. 16.912 × 999 =
17. 17.38 × 99 =
18. 18.2 × 9 =
19. 19.72 × 99 =
20. 20.511 × 99 =
21. 21.11891 × 999 =
22. 22.183 × 9 =
23. 23.3 × 9 =
24. 24.76 × 99 =
25. 25.227 × 9 =
26. 26.98 × 99 =
27. 27.86 × 99 =
28. 28.3 × 9 =
29. 29.51 × 99 =
30. 30.25 × 99 =
31. 31.618 × 99 =
32. 32.5 × 9 =
33. 33.79 × 9 =
34. 34.4 × 9 =
35. 35.12345 × 999 =
36. 36.5 × 9 =
37. 37.2 × 9 =
38. 38.67 × 99 =
39. 39.8 × 9 =
40. 40.7 × 9 =

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