Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 25 · 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. 1.6 × 9 =
2. 2.94 × 99 =
3. 3.789 × 999 =
4. 4.25089 × 999 =
5. 5.13 × 9 =
6. 6.549 × 999 =
7. 7.13 × 99 =
8. 8.5 × 99 =
9. 9.8 × 9 =
10. 10.31 × 99 =
11. 11.16 × 99 =
12. 12.909 × 999 =
13. 13.7 × 9 =
14. 14.4 × 99 =
15. 15.1835 × 99 =
16. 16.6 × 9 =
17. 17.85 × 99 =
18. 18.32 × 99 =
19. 19.63 × 99 =
20. 20.24 × 99 =
21. 21.8 × 9 =
22. 22.7 × 9 =
23. 23.7 × 99 =
24. 24.83 × 99 =
25. 25.7 × 9 =
26. 26.58 × 99 =
27. 27.6 × 9 =
28. 28.138 × 9 =
29. 29.6 × 9 =
30. 30.88 × 9 =
31. 31.5 × 9 =
32. 32.3 × 9 =
33. 33.31 × 9 =
34. 34.1111 × 99 =
35. 35.219 × 999 =
36. 36.10971 × 999 =
37. 37.3 × 9 =
38. 38.43 × 99 =
39. 39.7 × 9 =
40. 40.2 × 9 =

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