Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 876 · 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. 2.798 × 999 =
3. 3.31 × 99 =
4. 4.6 × 9 =
5. 5.2117 × 99 =
6. 6.3 × 9 =
7. 7.8 × 9 =
8. 8.525 × 999 =
9. 9.785 × 99 =
10. 10.265 × 999 =
11. 11.94 × 99 =
12. 12.59 × 9 =
13. 13.4 × 9 =
14. 14.4 × 9 =
15. 15.8 × 9 =
16. 16.5 × 9 =
17. 17.441 × 999 =
18. 18.607 × 999 =
19. 19.2746 × 99 =
20. 20.2095 × 99 =
21. 21.6 × 99 =
22. 22.33 × 999 =
23. 23.18 × 99 =
24. 24.39 × 9 =
25. 25.3 × 9 =
26. 26.86 × 99 =
27. 27.143 × 999 =
28. 28.2 × 9 =
29. 29.4504 × 999 =
30. 30.5 × 9 =
31. 31.77 × 99 =
32. 32.684 × 999 =
33. 33.142 × 9 =
34. 34.14211 × 999 =
35. 35.5 × 9 =
36. 36.7 × 9 =
37. 37.7 × 9 =
38. 38.557 × 999 =
39. 39.415 × 999 =
40. 40.3 × 9 =

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