Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 304 · 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. 1.917 × 999 =
2. 2.848 × 999 =
3. 3.2 × 9 =
4. 4.4 × 9 =
5. 5.6 × 9 =
6. 6.72 × 99 =
7. 7.344 × 999 =
8. 8.2431 × 99 =
9. 9.26 × 999 =
10. 10.54 × 99 =
11. 11.91 × 99 =
12. 12.413 × 999 =
13. 13.2695 × 99 =
14. 14.688 × 999 =
15. 15.859 × 999 =
16. 16.746 × 999 =
17. 17.41 × 99 =
18. 18.1699 × 99 =
19. 19.761 × 99 =
20. 20.35 × 99 =
21. 21.1237 × 99 =
22. 22.241 × 999 =
23. 23.71 × 99 =
24. 24.5 × 9 =
25. 25.25 × 9 =
26. 26.138 × 9 =
27. 27.94 × 99 =
28. 28.34 × 99 =
29. 29.74 × 99 =
30. 30.71 × 99 =
31. 31.272 × 999 =
32. 32.975 × 999 =
33. 33.721 × 999 =
34. 34.11721 × 999 =
35. 35.618 × 999 =
36. 36.9 × 99 =
37. 37.3648 × 999 =
38. 38.5 × 9 =
39. 39.58 × 9 =
40. 40.251 × 999 =

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