Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 506 · 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. 2.386 × 999 =
3. 3.5 × 9 =
4. 4.717 × 999 =
5. 5.5 × 9 =
6. 6.1815 × 99 =
7. 7.4534 × 999 =
8. 8.172 × 999 =
9. 9.63 × 99 =
10. 10.56 × 999 =
11. 11.57 × 99 =
12. 12.365 × 999 =
13. 13.77 × 99 =
14. 14.19 × 99 =
15. 15.47 × 99 =
16. 16.7 × 9 =
17. 17.56 × 99 =
18. 18.6 × 9 =
19. 19.78 × 99 =
20. 20.1747 × 99 =
21. 21.11 × 99 =
22. 22.61 × 99 =
23. 23.1941 × 99 =
24. 24.256 × 9 =
25. 25.13 × 99 =
26. 26.3 × 9 =
27. 27.82 × 99 =
28. 28.3 × 9 =
29. 29.882 × 999 =
30. 30.16 × 99 =
31. 31.1263 × 99 =
32. 32.27012 × 999 =
33. 33.87 × 9 =
34. 34.63 × 99 =
35. 35.36 × 99 =
36. 36.483 × 999 =
37. 37.19738 × 999 =
38. 38.631 × 99 =
39. 39.1574 × 99 =
40. 40.2 × 9 =

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