Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 524 · 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. 1.85 × 999 =
2. 2.3 × 9 =
3. 3.19 × 9 =
4. 4.7 × 9 =
5. 5.68 × 99 =
6. 6.97 × 9 =
7. 7.61 × 999 =
8. 8.36 × 99 =
9. 9.25 × 99 =
10. 10.95 × 9 =
11. 11.56 × 99 =
12. 12.32 × 99 =
13. 13.83 × 99 =
14. 14.146 × 999 =
15. 15.728 × 999 =
16. 16.496 × 99 =
17. 17.29 × 99 =
18. 18.83 × 99 =
19. 19.769 × 99 =
20. 20.81 × 99 =
21. 21.2 × 9 =
22. 22.3 × 9 =
23. 23.2243 × 99 =
24. 24.171 × 999 =
25. 25.3 × 9 =
26. 26.8 × 9 =
27. 27.713 × 999 =
28. 28.12 × 99 =
29. 29.16 × 99 =
30. 30.35 × 99 =
31. 31.17 × 99 =
32. 32.4 × 9 =
33. 33.56 × 99 =
34. 34.83 × 99 =
35. 35.6 × 9 =
36. 36.2 × 9 =
37. 37.222 × 999 =
38. 38.436 × 999 =
39. 39.2402 × 999 =
40. 40.2 × 99 =

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