Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 254 · 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. 1.6 × 9 =
2. 2.261 × 9 =
3. 3.2 × 9 =
4. 4.573 × 999 =
5. 5.3 × 9 =
6. 6.27866 × 999 =
7. 7.561 × 99 =
8. 8.697 × 999 =
9. 9.103 × 9 =
10. 10.116 × 9 =
11. 11.2 × 9 =
12. 12.354 × 999 =
13. 13.61 × 99 =
14. 14.3 × 9 =
15. 15.213 × 9 =
16. 16.87 × 999 =
17. 17.8 × 9 =
18. 18.344 × 999 =
19. 19.51 × 99 =
20. 20.83 × 9 =
21. 21.568 × 999 =
22. 22.61 × 99 =
23. 23.63 × 99 =
24. 24.71 × 99 =
25. 25.4 × 99 =
26. 26.4 × 9 =
27. 27.727 × 999 =
28. 28.251 × 9 =
29. 29.71 × 99 =
30. 30.423 × 999 =
31. 31.2957 × 99 =
32. 32.11 × 99 =
33. 33.819 × 999 =
34. 34.2546 × 99 =
35. 35.915 × 999 =
36. 36.15 × 99 =
37. 37.8503 × 999 =
38. 38.5 × 9 =
39. 39.202 × 9 =
40. 40.827 × 999 =

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