Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 724 · 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. 1.4 × 9 =
2. 2.89 × 99 =
3. 3.7 × 9 =
4. 4.92 × 99 =
5. 5.35 × 99 =
6. 6.23877 × 999 =
7. 7.5 × 9 =
8. 8.148 × 99 =
9. 9.6751 × 999 =
10. 10.3 × 9 =
11. 11.77 × 99 =
12. 12.2 × 9 =
13. 13.8 × 9 =
14. 14.37 × 99 =
15. 15.44 × 99 =
16. 16.6371 × 999 =
17. 17.676 × 999 =
18. 18.21775 × 999 =
19. 19.5 × 9 =
20. 20.11 × 99 =
21. 21.5 × 9 =
22. 22.484 × 999 =
23. 23.284 × 999 =
24. 24.12 × 99 =
25. 25.6 × 9 =
26. 26.228 × 99 =
27. 27.81 × 99 =
28. 28.29 × 99 =
29. 29.114 × 999 =
30. 30.491 × 999 =
31. 31.3 × 9 =
32. 32.11386 × 999 =
33. 33.12 × 99 =
34. 34.346 × 999 =
35. 35.534 × 999 =
36. 36.2 × 9 =
37. 37.81 × 99 =
38. 38.129 × 9 =
39. 39.2 × 99 =
40. 40.6 × 9 =

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