Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 179 · 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. 1.43 × 99 =
2. 2.5 × 9 =
3. 3.214 × 999 =
4. 4.862 × 999 =
5. 5.644 × 999 =
6. 6.38 × 99 =
7. 7.909 × 999 =
8. 8.253 × 999 =
9. 9.38 × 99 =
10. 10.1232 × 99 =
11. 11.191 × 9 =
12. 12.1521 × 99 =
13. 13.8 × 9 =
14. 14.437 × 999 =
15. 15.179 × 9 =
16. 16.18 × 99 =
17. 17.61 × 99 =
18. 18.15733 × 999 =
19. 19.544 × 999 =
20. 20.2059 × 99 =
21. 21.5 × 9 =
22. 22.5657 × 999 =
23. 23.54 × 99 =
24. 24.95 × 99 =
25. 25.18 × 999 =
26. 26.85 × 99 =
27. 27.87 × 9 =
28. 28.52 × 999 =
29. 29.95 × 99 =
30. 30.283 × 999 =
31. 31.731 × 999 =
32. 32.1267 × 99 =
33. 33.998 × 999 =
34. 34.8239 × 999 =
35. 35.2 × 99 =
36. 36.4 × 9 =
37. 37.451 × 999 =
38. 38.93 × 99 =
39. 39.96 × 99 =
40. 40.951 × 999 =

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