Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 834 · 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. 1.624 × 999 =
2. 2.4 × 9 =
3. 3.89 × 99 =
4. 4.5 × 9 =
5. 5.3 × 9 =
6. 6.17175 × 999 =
7. 7.8 × 9 =
8. 8.801 × 99 =
9. 9.14779 × 999 =
10. 10.27 × 9 =
11. 11.408 × 999 =
12. 12.88 × 999 =
13. 13.15 × 99 =
14. 14.5 × 99 =
15. 15.459 × 999 =
16. 16.401 × 999 =
17. 17.6 × 9 =
18. 18.7 × 9 =
19. 19.3 × 9 =
20. 20.2 × 9 =
21. 21.66 × 99 =
22. 22.28 × 99 =
23. 23.2206 × 99 =
24. 24.7 × 9 =
25. 25.391 × 999 =
26. 26.769 × 99 =
27. 27.1367 × 99 =
28. 28.446 × 99 =
29. 29.361 × 999 =
30. 30.31 × 9 =
31. 31.8 × 9 =
32. 32.33 × 9 =
33. 33.1334 × 99 =
34. 34.7 × 9 =
35. 35.8 × 9 =
36. 36.5 × 9 =
37. 37.472 × 999 =
38. 38.883 × 999 =
39. 39.31 × 99 =
40. 40.24 × 99 =

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