Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 434 · 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. 1.4 × 9 =
2. 2.19 × 99 =
3. 3.6 × 9 =
4. 4.2758 × 99 =
5. 5.82 × 99 =
6. 6.81 × 99 =
7. 7.793 × 999 =
8. 8.14 × 99 =
9. 9.7 × 9 =
10. 10.53 × 99 =
11. 11.266 × 999 =
12. 12.4 × 9 =
13. 13.4 × 9 =
14. 14.5 × 9 =
15. 15.4 × 9 =
16. 16.695 × 99 =
17. 17.2784 × 99 =
18. 18.754 × 999 =
19. 19.6 × 9 =
20. 20.182 × 999 =
21. 21.155 × 9 =
22. 22.2 × 9 =
23. 23.34 × 99 =
24. 24.35 × 99 =
25. 25.91 × 99 =
26. 26.4 × 9 =
27. 27.96 × 99 =
28. 28.264 × 999 =
29. 29.98 × 99 =
30. 30.28 × 99 =
31. 31.85 × 9 =
32. 32.2 × 9 =
33. 33.223 × 999 =
34. 34.5237 × 999 =
35. 35.641 × 999 =
36. 36.51 × 9 =
37. 37.8 × 9 =
38. 38.54 × 99 =
39. 39.1667 × 99 =
40. 40.971 × 999 =

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