Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 501 · 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. 1.23875 × 999 =
2. 2.95 × 99 =
3. 3.24 × 99 =
4. 4.221 × 99 =
5. 5.87 × 99 =
6. 6.62 × 999 =
7. 7.82 × 99 =
8. 8.94 × 99 =
9. 9.8 × 9 =
10. 10.509 × 999 =
11. 11.5 × 99 =
12. 12.19 × 99 =
13. 13.3 × 9 =
14. 14.245 × 99 =
15. 15.753 × 999 =
16. 16.3 × 9 =
17. 17.33 × 999 =
18. 18.8 × 9 =
19. 19.914 × 999 =
20. 20.8 × 9 =
21. 21.373 × 999 =
22. 22.12 × 99 =
23. 23.91 × 99 =
24. 24.8 × 9 =
25. 25.278 × 999 =
26. 26.259 × 9 =
27. 27.56 × 99 =
28. 28.72 × 999 =
29. 29.1357 × 99 =
30. 30.64 × 99 =
31. 31.497 × 999 =
32. 32.26 × 99 =
33. 33.133 × 9 =
34. 34.41 × 99 =
35. 35.15 × 99 =
36. 36.211 × 99 =
37. 37.306 × 999 =
38. 38.19 × 99 =
39. 39.95 × 99 =
40. 40.1151 × 99 =

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