Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 735 · 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. 1.8 × 9 =
2. 2.46 × 99 =
3. 3.94 × 99 =
4. 4.73 × 99 =
5. 5.2 × 9 =
6. 6.82 × 99 =
7. 7.5 × 99 =
8. 8.3 × 9 =
9. 9.804 × 999 =
10. 10.919 × 999 =
11. 11.27 × 99 =
12. 12.59 × 99 =
13. 13.2705 × 99 =
14. 14.24219 × 999 =
15. 15.6 × 9 =
16. 16.59 × 9 =
17. 17.536 × 999 =
18. 18.1671 × 99 =
19. 19.38 × 99 =
20. 20.872 × 999 =
21. 21.1096 × 99 =
22. 22.2437 × 99 =
23. 23.61 × 99 =
24. 24.14 × 99 =
25. 25.27 × 99 =
26. 26.1891 × 99 =
27. 27.16 × 99 =
28. 28.29126 × 999 =
29. 29.71 × 99 =
30. 30.94 × 99 =
31. 31.21 × 99 =
32. 32.1281 × 99 =
33. 33.23 × 99 =
34. 34.8 × 9 =
35. 35.158 × 9 =
36. 36.439 × 99 =
37. 37.3 × 9 =
38. 38.7 × 9 =
39. 39.966 × 999 =
40. 40.1073 × 99 =

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