Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 253 · 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. 1.7 × 9 =
2. 2.39 × 9 =
3. 3.36 × 99 =
4. 4.16 × 9 =
5. 5.20256 × 999 =
6. 6.36 × 99 =
7. 7.1559 × 99 =
8. 8.34 × 9 =
9. 9.93 × 99 =
10. 10.35 × 99 =
11. 11.31 × 9 =
12. 12.3 × 9 =
13. 13.137 × 999 =
14. 14.59 × 99 =
15. 15.5 × 9 =
16. 16.8 × 9 =
17. 17.12 × 99 =
18. 18.11 × 999 =
19. 19.41 × 99 =
20. 20.78 × 99 =
21. 21.6 × 9 =
22. 22.85 × 99 =
23. 23.3 × 9 =
24. 24.55 × 9 =
25. 25.3 × 9 =
26. 26.218 × 9 =
27. 27.411 × 999 =
28. 28.3 × 9 =
29. 29.1188 × 99 =
30. 30.42 × 99 =
31. 31.796 × 999 =
32. 32.26891 × 999 =
33. 33.59 × 99 =
34. 34.71 × 99 =
35. 35.43 × 99 =
36. 36.5 × 9 =
37. 37.66 × 9 =
38. 38.6 × 9 =
39. 39.5 × 9 =
40. 40.37 × 9 =

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