Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 930 · 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. 1.8 × 9 =
2. 2.35 × 99 =
3. 3.43 × 99 =
4. 4.2719 × 99 =
5. 5.2 × 9 =
6. 6.3 × 9 =
7. 7.116 × 9 =
8. 8.6 × 9 =
9. 9.256 × 999 =
10. 10.117 × 9 =
11. 11.547 × 999 =
12. 12.681 × 999 =
13. 13.5 × 9 =
14. 14.582 × 999 =
15. 15.61 × 99 =
16. 16.96 × 99 =
17. 17.2 × 9 =
18. 18.5 × 9 =
19. 19.2551 × 99 =
20. 20.15574 × 999 =
21. 21.484 × 99 =
22. 22.91 × 9 =
23. 23.3611 × 999 =
24. 24.3 × 9 =
25. 25.55 × 99 =
26. 26.19448 × 999 =
27. 27.8 × 9 =
28. 28.7 × 9 =
29. 29.228 × 999 =
30. 30.541 × 999 =
31. 31.231 × 999 =
32. 32.221 × 999 =
33. 33.879 × 999 =
34. 34.902 × 99 =
35. 35.5 × 9 =
36. 36.18798 × 999 =
37. 37.1597 × 99 =
38. 38.192 × 9 =
39. 39.6 × 9 =
40. 40.113 × 9 =

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