Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 458 · 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. 1.12 × 9 =
2. 2.648 × 999 =
3. 3.4 × 9 =
4. 4.17 × 999 =
5. 5.12 × 99 =
6. 6.2409 × 99 =
7. 7.42 × 999 =
8. 8.29 × 99 =
9. 9.24 × 99 =
10. 10.6 × 9 =
11. 11.606 × 999 =
12. 12.21941 × 999 =
13. 13.81 × 99 =
14. 14.2 × 9 =
15. 15.76 × 9 =
16. 16.2051 × 99 =
17. 17.31 × 99 =
18. 18.8 × 9 =
19. 19.27 × 999 =
20. 20.52 × 99 =
21. 21.67 × 99 =
22. 22.8501 × 999 =
23. 23.644 × 999 =
24. 24.201 × 9 =
25. 25.33 × 99 =
26. 26.61 × 99 =
27. 27.3 × 9 =
28. 28.4 × 9 =
29. 29.5 × 9 =
30. 30.8859 × 999 =
31. 31.22 × 99 =
32. 32.3 × 9 =
33. 33.6 × 9 =
34. 34.5 × 9 =
35. 35.207 × 9 =
36. 36.148 × 9 =
37. 37.8 × 9 =
38. 38.2 × 9 =
39. 39.8821 × 999 =
40. 40.6 × 9 =

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