Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 357 · 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. 1.19 × 99 =
2. 2.3 × 9 =
3. 3.61 × 9 =
4. 4.4 × 9 =
5. 5.31 × 99 =
6. 6.231 × 9 =
7. 7.4 × 9 =
8. 8.16338 × 999 =
9. 9.11 × 99 =
10. 10.7 × 9 =
11. 11.7 × 9 =
12. 12.688 × 99 =
13. 13.4 × 9 =
14. 14.4 × 9 =
15. 15.51 × 99 =
16. 16.38 × 99 =
17. 17.691 × 999 =
18. 18.10684 × 999 =
19. 19.141 × 999 =
20. 20.21 × 99 =
21. 21.147 × 999 =
22. 22.24 × 99 =
23. 23.151 × 999 =
24. 24.624 × 999 =
25. 25.5 × 9 =
26. 26.6 × 9 =
27. 27.6 × 9 =
28. 28.381 × 999 =
29. 29.141 × 999 =
30. 30.46 × 99 =
31. 31.88 × 999 =
32. 32.8 × 9 =
33. 33.4 × 9 =
34. 34.7 × 9 =
35. 35.94 × 9 =
36. 36.92 × 9 =
37. 37.2 × 9 =
38. 38.2662 × 99 =
39. 39.2 × 9 =
40. 40.7477 × 999 =

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