Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 505 · 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. 1.7 × 9 =
2. 2.77 × 999 =
3. 3.5 × 9 =
4. 4.48 × 99 =
5. 5.4807 × 999 =
6. 6.5 × 9 =
7. 7.81 × 99 =
8. 8.5 × 99 =
9. 9.8 × 9 =
10. 10.4 × 9 =
11. 11.3 × 9 =
12. 12.594 × 99 =
13. 13.51 × 99 =
14. 14.7 × 9 =
15. 15.126 × 9 =
16. 16.11 × 9 =
17. 17.24107 × 999 =
18. 18.71 × 9 =
19. 19.1535 × 99 =
20. 20.18 × 99 =
21. 21.118 × 9 =
22. 22.71 × 99 =
23. 23.98 × 99 =
24. 24.696 × 999 =
25. 25.7 × 9 =
26. 26.261 × 999 =
27. 27.153 × 9 =
28. 28.2727 × 99 =
29. 29.621 × 999 =
30. 30.1841 × 99 =
31. 31.2 × 9 =
32. 32.3 × 999 =
33. 33.18 × 99 =
34. 34.6 × 9 =
35. 35.63 × 9 =
36. 36.31 × 99 =
37. 37.43 × 99 =
38. 38.31 × 9 =
39. 39.5 × 9 =
40. 40.587 × 999 =

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