Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 87 · 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. 1.8 × 9 =
2. 2.71 × 99 =
3. 3.6 × 9 =
4. 4.7 × 9 =
5. 5.24753 × 999 =
6. 6.3 × 9 =
7. 7.10735 × 999 =
8. 8.301 × 99 =
9. 9.1917 × 99 =
10. 10.7 × 9 =
11. 11.36 × 99 =
12. 12.977 × 999 =
13. 13.7 × 9 =
14. 14.45 × 99 =
15. 15.32 × 99 =
16. 16.95 × 99 =
17. 17.1985 × 999 =
18. 18.20002 × 999 =
19. 19.8 × 9 =
20. 20.5 × 9 =
21. 21.56 × 99 =
22. 22.14614 × 999 =
23. 23.11 × 99 =
24. 24.3 × 9 =
25. 25.1815 × 99 =
26. 26.1529 × 99 =
27. 27.358 × 999 =
28. 28.319 × 999 =
29. 29.2 × 9 =
30. 30.3 × 99 =
31. 31.13 × 99 =
32. 32.51 × 99 =
33. 33.172 × 999 =
34. 34.7 × 9 =
35. 35.906 × 999 =
36. 36.89 × 99 =
37. 37.21555 × 999 =
38. 38.73 × 99 =
39. 39.82 × 99 =
40. 40.115 × 9 =

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