Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 35 · 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. 1.172 × 99 =
2. 2.2 × 9 =
3. 3.2012 × 99 =
4. 4.259 × 9 =
5. 5.931 × 999 =
6. 6.91 × 99 =
7. 7.1602 × 99 =
8. 8.3962 × 999 =
9. 9.476 × 999 =
10. 10.3161 × 999 =
11. 11.7 × 9 =
12. 12.3 × 9 =
13. 13.64 × 99 =
14. 14.786 × 999 =
15. 15.21 × 99 =
16. 16.95 × 99 =
17. 17.4 × 9 =
18. 18.2 × 9 =
19. 19.23 × 999 =
20. 20.63 × 99 =
21. 21.22 × 99 =
22. 22.97 × 9 =
23. 23.435 × 99 =
24. 24.1157 × 99 =
25. 25.3 × 9 =
26. 26.72 × 99 =
27. 27.179 × 9 =
28. 28.865 × 999 =
29. 29.93 × 99 =
30. 30.451 × 99 =
31. 31.41 × 9 =
32. 32.2759 × 99 =
33. 33.522 × 999 =
34. 34.38 × 9 =
35. 35.299 × 999 =
36. 36.91 × 999 =
37. 37.5 × 9 =
38. 38.19323 × 999 =
39. 39.77 × 99 =
40. 40.2 × 9 =

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