Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 215 · 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. 1.5 × 9 =
2. 2.24 × 9 =
3. 3.25 × 99 =
4. 4.67 × 99 =
5. 5.677 × 999 =
6. 6.94 × 99 =
7. 7.21 × 99 =
8. 8.15 × 99 =
9. 9.35 × 999 =
10. 10.634 × 99 =
11. 11.6 × 9 =
12. 12.94 × 99 =
13. 13.275 × 999 =
14. 14.543 × 99 =
15. 15.11 × 99 =
16. 16.3 × 9 =
17. 17.543 × 999 =
18. 18.931 × 999 =
19. 19.23 × 99 =
20. 20.72 × 99 =
21. 21.11 × 999 =
22. 22.9 × 99 =
23. 23.2 × 9 =
24. 24.258 × 999 =
25. 25.3 × 9 =
26. 26.861 × 999 =
27. 27.141 × 9 =
28. 28.12 × 99 =
29. 29.71 × 9 =
30. 30.57 × 99 =
31. 31.336 × 99 =
32. 32.976 × 99 =
33. 33.81 × 9 =
34. 34.14 × 99 =
35. 35.13 × 99 =
36. 36.44 × 99 =
37. 37.67 × 99 =
38. 38.2757 × 99 =
39. 39.764 × 99 =
40. 40.26231 × 999 =

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