Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 455 · 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. 1.237 × 999 =
2. 2.481 × 99 =
3. 3.5 × 9 =
4. 4.27153 × 999 =
5. 5.8 × 9 =
6. 6.28725 × 999 =
7. 7.7 × 9 =
8. 8.556 × 999 =
9. 9.2 × 9 =
10. 10.2 × 9 =
11. 11.7 × 9 =
12. 12.41 × 99 =
13. 13.2585 × 99 =
14. 14.696 × 999 =
15. 15.6 × 9 =
16. 16.631 × 999 =
17. 17.425 × 999 =
18. 18.51 × 9 =
19. 19.11687 × 999 =
20. 20.36 × 9 =
21. 21.5 × 9 =
22. 22.24 × 99 =
23. 23.24269 × 999 =
24. 24.2384 × 99 =
25. 25.31 × 99 =
26. 26.26718 × 999 =
27. 27.4 × 9 =
28. 28.85 × 99 =
29. 29.5 × 9 =
30. 30.9 × 99 =
31. 31.225 × 9 =
32. 32.74 × 9 =
33. 33.9461 × 999 =
34. 34.402 × 99 =
35. 35.91 × 99 =
36. 36.7 × 9 =
37. 37.91 × 99 =
38. 38.211 × 9 =
39. 39.11 × 99 =
40. 40.3 × 9 =

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