Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 338 · 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. 1.58 × 99 =
2. 2.2 × 9 =
3. 3.53 × 99 =
4. 4.3 × 9 =
5. 5.12 × 99 =
6. 6.809 × 999 =
7. 7.64 × 99 =
8. 8.2794 × 99 =
9. 9.835 × 999 =
10. 10.53 × 99 =
11. 11.3 × 9 =
12. 12.429 × 999 =
13. 13.245 × 999 =
14. 14.81 × 99 =
15. 15.44 × 99 =
16. 16.6 × 9 =
17. 17.2 × 99 =
18. 18.389 × 99 =
19. 19.93 × 99 =
20. 20.4 × 9 =
21. 21.125 × 999 =
22. 22.58 × 99 =
23. 23.206 × 999 =
24. 24.6 × 9 =
25. 25.7 × 9 =
26. 26.431 × 999 =
27. 27.653 × 99 =
28. 28.772 × 99 =
29. 29.7 × 999 =
30. 30.21335 × 999 =
31. 31.107 × 999 =
32. 32.635 × 999 =
33. 33.98 × 999 =
34. 34.6 × 9 =
35. 35.42 × 99 =
36. 36.36 × 99 =
37. 37.2126 × 99 =
38. 38.29 × 99 =
39. 39.4 × 9 =
40. 40.72 × 99 =

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