Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 984 · 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. 1.31 × 99 =
2. 2.804 × 999 =
3. 3.52 × 99 =
4. 4.21436 × 999 =
5. 5.368 × 999 =
6. 6.346 × 999 =
7. 7.838 × 99 =
8. 8.2024 × 99 =
9. 9.591 × 999 =
10. 10.6 × 99 =
11. 11.48 × 9 =
12. 12.92 × 99 =
13. 13.46 × 99 =
14. 14.891 × 99 =
15. 15.3 × 9 =
16. 16.3 × 9 =
17. 17.218 × 999 =
18. 18.18 × 99 =
19. 19.7 × 99 =
20. 20.2758 × 99 =
21. 21.1579 × 99 =
22. 22.88 × 99 =
23. 23.5 × 9 =
24. 24.14 × 99 =
25. 25.12411 × 999 =
26. 26.83 × 99 =
27. 27.38 × 99 =
28. 28.31 × 99 =
29. 29.71 × 99 =
30. 30.724 × 999 =
31. 31.511 × 999 =
32. 32.157 × 99 =
33. 33.15628 × 999 =
34. 34.1827 × 99 =
35. 35.64 × 99 =
36. 36.246 × 9 =
37. 37.334 × 99 =
38. 38.6 × 9 =
39. 39.2049 × 99 =
40. 40.2627 × 99 =

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