Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 866 · 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. 1.3 × 9 =
2. 2.93 × 99 =
3. 3.68 × 99 =
4. 4.878 × 999 =
5. 5.2 × 9 =
6. 6.7 × 9 =
7. 7.66 × 99 =
8. 8.8221 × 999 =
9. 9.71 × 9 =
10. 10.84 × 99 =
11. 11.3 × 9 =
12. 12.112 × 9 =
13. 13.269 × 99 =
14. 14.6 × 9 =
15. 15.79 × 99 =
16. 16.15216 × 999 =
17. 17.31 × 9 =
18. 18.2291 × 99 =
19. 19.2118 × 99 =
20. 20.7 × 9 =
21. 21.56 × 99 =
22. 22.8 × 9 =
23. 23.2 × 9 =
24. 24.252 × 9 =
25. 25.111 × 9 =
26. 26.7 × 9 =
27. 27.13 × 99 =
28. 28.6 × 9 =
29. 29.49 × 99 =
30. 30.98 × 99 =
31. 31.4 × 99 =
32. 32.95 × 99 =
33. 33.48 × 99 =
34. 34.71 × 99 =
35. 35.233 × 9 =
36. 36.75 × 99 =
37. 37.21 × 999 =
38. 38.5 × 9 =
39. 39.12 × 99 =
40. 40.133 × 9 =

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