Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 446 · 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. 1.96 × 99 =
2. 2.3 × 9 =
3. 3.27 × 99 =
4. 4.2 × 9 =
5. 5.5 × 9 =
6. 6.45 × 999 =
7. 7.808 × 99 =
8. 8.15 × 99 =
9. 9.42 × 9 =
10. 10.2 × 9 =
11. 11.26821 × 999 =
12. 12.19771 × 999 =
13. 13.156 × 99 =
14. 14.6 × 99 =
15. 15.5 × 9 =
16. 16.78 × 99 =
17. 17.61 × 999 =
18. 18.49 × 99 =
19. 19.4 × 9 =
20. 20.29 × 99 =
21. 21.834 × 999 =
22. 22.711 × 99 =
23. 23.84 × 99 =
24. 24.78 × 99 =
25. 25.691 × 999 =
26. 26.5 × 9 =
27. 27.61 × 99 =
28. 28.9913 × 999 =
29. 29.81 × 99 =
30. 30.277 × 999 =
31. 31.2695 × 99 =
32. 32.7 × 9 =
33. 33.6 × 9 =
34. 34.1262 × 99 =
35. 35.3 × 9 =
36. 36.74 × 999 =
37. 37.4 × 9 =
38. 38.139 × 999 =
39. 39.7 × 9 =
40. 40.2 × 9 =

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