Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 409 · 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. 1.727 × 999 =
2. 2.82 × 99 =
3. 3.2832 × 99 =
4. 4.827 × 99 =
5. 5.171 × 9 =
6. 6.2 × 9 =
7. 7.31 × 99 =
8. 8.892 × 999 =
9. 9.3 × 99 =
10. 10.1637 × 99 =
11. 11.263 × 9 =
12. 12.7052 × 999 =
13. 13.5 × 9 =
14. 14.5 × 9 =
15. 15.6114 × 999 =
16. 16.77 × 9 =
17. 17.419 × 999 =
18. 18.561 × 999 =
19. 19.142 × 9 =
20. 20.14 × 99 =
21. 21.29 × 99 =
22. 22.53 × 99 =
23. 23.2791 × 99 =
24. 24.2 × 99 =
25. 25.54 × 999 =
26. 26.713 × 999 =
27. 27.13 × 99 =
28. 28.19 × 99 =
29. 29.224 × 9 =
30. 30.41 × 99 =
31. 31.91 × 99 =
32. 32.8 × 9 =
33. 33.23 × 99 =
34. 34.16 × 99 =
35. 35.8 × 9 =
36. 36.6 × 99 =
37. 37.2 × 9 =
38. 38.2773 × 99 =
39. 39.401 × 999 =
40. 40.3 × 9 =

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