Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 697 · 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. 1.17237 × 999 =
2. 2.6 × 9 =
3. 3.12 × 9 =
4. 4.573 × 999 =
5. 5.301 × 999 =
6. 6.3184 × 999 =
7. 7.8408 × 999 =
8. 8.4223 × 999 =
9. 9.289 × 999 =
10. 10.3 × 9 =
11. 11.63 × 99 =
12. 12.76 × 99 =
13. 13.32 × 99 =
14. 14.35 × 9 =
15. 15.2 × 999 =
16. 16.25 × 99 =
17. 17.5 × 9 =
18. 18.69 × 9 =
19. 19.87 × 99 =
20. 20.2 × 9 =
21. 21.222 × 9 =
22. 22.431 × 999 =
23. 23.411 × 999 =
24. 24.22 × 9 =
25. 25.2 × 9 =
26. 26.806 × 99 =
27. 27.91 × 99 =
28. 28.7 × 9 =
29. 29.45 × 99 =
30. 30.81 × 9 =
31. 31.5 × 9 =
32. 32.212 × 9 =
33. 33.91 × 99 =
34. 34.3 × 9 =
35. 35.64 × 99 =
36. 36.3 × 9 =
37. 37.476 × 999 =
38. 38.782 × 999 =
39. 39.412 × 999 =
40. 40.32 × 99 =

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