Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 267 · 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. 1.866 × 999 =
2. 2.272 × 999 =
3. 3.5 × 99 =
4. 4.51 × 99 =
5. 5.233 × 9 =
6. 6.85 × 99 =
7. 7.8 × 9 =
8. 8.278 × 999 =
9. 9.2 × 9 =
10. 10.33 × 99 =
11. 11.16 × 99 =
12. 12.163 × 999 =
13. 13.49 × 99 =
14. 14.2 × 9 =
15. 15.6 × 9 =
16. 16.3 × 9 =
17. 17.261 × 9 =
18. 18.8 × 9 =
19. 19.107 × 9 =
20. 20.4 × 9 =
21. 21.2991 × 999 =
22. 22.7 × 9 =
23. 23.39 × 99 =
24. 24.2 × 9 =
25. 25.7 × 9 =
26. 26.47 × 99 =
27. 27.665 × 999 =
28. 28.632 × 99 =
29. 29.6 × 9 =
30. 30.113 × 9 =
31. 31.8 × 9 =
32. 32.2423 × 99 =
33. 33.10146 × 999 =
34. 34.76 × 99 =
35. 35.17934 × 999 =
36. 36.21 × 99 =
37. 37.649 × 999 =
38. 38.5 × 9 =
39. 39.6724 × 999 =
40. 40.91 × 99 =

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