Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 533 · 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. 1.839 × 999 =
2. 2.2628 × 99 =
3. 3.8 × 9 =
4. 4.4 × 9 =
5. 5.905 × 999 =
6. 6.588 × 999 =
7. 7.102 × 9 =
8. 8.801 × 999 =
9. 9.8 × 99 =
10. 10.2 × 9 =
11. 11.2828 × 99 =
12. 12.15 × 9 =
13. 13.83 × 9 =
14. 14.8 × 9 =
15. 15.29579 × 999 =
16. 16.388 × 999 =
17. 17.181 × 9 =
18. 18.7 × 9 =
19. 19.7 × 9 =
20. 20.253 × 999 =
21. 21.2 × 9 =
22. 22.8 × 99 =
23. 23.5 × 9 =
24. 24.765 × 999 =
25. 25.18 × 9 =
26. 26.6 × 9 =
27. 27.48 × 99 =
28. 28.444 × 999 =
29. 29.841 × 999 =
30. 30.98 × 9 =
31. 31.4 × 9 =
32. 32.194 × 9 =
33. 33.506 × 99 =
34. 34.86 × 999 =
35. 35.3 × 9 =
36. 36.1708 × 999 =
37. 37.21 × 99 =
38. 38.981 × 99 =
39. 39.146 × 999 =
40. 40.7 × 9 =

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