Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 430 · 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 × 999 =
2. 2.15 × 99 =
3. 3.72 × 99 =
4. 4.207 × 999 =
5. 5.799 × 999 =
6. 6.21 × 99 =
7. 7.4 × 9 =
8. 8.8 × 9 =
9. 9.148 × 9 =
10. 10.316 × 999 =
11. 11.2 × 9 =
12. 12.21 × 99 =
13. 13.4 × 9 =
14. 14.73 × 9 =
15. 15.96 × 99 =
16. 16.86 × 99 =
17. 17.887 × 999 =
18. 18.469 × 999 =
19. 19.346 × 99 =
20. 20.37 × 99 =
21. 21.66 × 9 =
22. 22.21 × 99 =
23. 23.9894 × 999 =
24. 24.881 × 999 =
25. 25.49 × 99 =
26. 26.6 × 9 =
27. 27.1061 × 99 =
28. 28.3 × 9 =
29. 29.741 × 999 =
30. 30.28 × 99 =
31. 31.8 × 9 =
32. 32.76 × 99 =
33. 33.108 × 9 =
34. 34.271 × 999 =
35. 35.84 × 99 =
36. 36.46 × 99 =
37. 37.5 × 9 =
38. 38.1134 × 99 =
39. 39.7 × 9 =
40. 40.47 × 99 =

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