Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 904 · 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. 1.3 × 9 =
2. 2.46 × 99 =
3. 3.56 × 99 =
4. 4.772 × 999 =
5. 5.8 × 9 =
6. 6.6 × 9 =
7. 7.8 × 9 =
8. 8.2 × 9 =
9. 9.12 × 9 =
10. 10.3 × 9 =
11. 11.1297 × 99 =
12. 12.407 × 999 =
13. 13.31 × 99 =
14. 14.351 × 999 =
15. 15.1344 × 99 =
16. 16.14009 × 999 =
17. 17.78 × 99 =
18. 18.834 × 999 =
19. 19.365 × 99 =
20. 20.7 × 9 =
21. 21.146 × 9 =
22. 22.6 × 99 =
23. 23.55 × 99 =
24. 24.179 × 9 =
25. 25.8 × 9 =
26. 26.1679 × 99 =
27. 27.3 × 9 =
28. 28.2 × 9 =
29. 29.93 × 99 =
30. 30.7 × 9 =
31. 31.3 × 99 =
32. 32.81 × 99 =
33. 33.89 × 99 =
34. 34.7 × 9 =
35. 35.62 × 99 =
36. 36.51 × 99 =
37. 37.7 × 9 =
38. 38.4 × 9 =
39. 39.191 × 999 =
40. 40.59 × 99 =

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