Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 534 · 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. 1.9 × 99 =
2. 2.155 × 99 =
3. 3.74 × 99 =
4. 4.3 × 99 =
5. 5.747 × 99 =
6. 6.244 × 99 =
7. 7.97 × 99 =
8. 8.21 × 99 =
9. 9.1442 × 99 =
10. 10.95 × 999 =
11. 11.58 × 999 =
12. 12.25 × 99 =
13. 13.4 × 9 =
14. 14.7 × 9 =
15. 15.302 × 999 =
16. 16.33 × 99 =
17. 17.6 × 9 =
18. 18.1061 × 99 =
19. 19.51 × 99 =
20. 20.27 × 9 =
21. 21.12 × 99 =
22. 22.22 × 99 =
23. 23.7 × 9 =
24. 24.3 × 9 =
25. 25.3 × 9 =
26. 26.268 × 999 =
27. 27.12433 × 999 =
28. 28.981 × 99 =
29. 29.241 × 9 =
30. 30.63 × 99 =
31. 31.71 × 9 =
32. 32.1729 × 99 =
33. 33.696 × 999 =
34. 34.11 × 99 =
35. 35.19 × 99 =
36. 36.6 × 9 =
37. 37.5 × 99 =
38. 38.91 × 99 =
39. 39.973 × 999 =
40. 40.954 × 999 =

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