Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 265 · 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. 1.35 × 99 =
2. 2.4 × 9 =
3. 3.441 × 99 =
4. 4.532 × 999 =
5. 5.131 × 9 =
6. 6.7148 × 999 =
7. 7.88 × 99 =
8. 8.14 × 9 =
9. 9.5 × 9 =
10. 10.3 × 9 =
11. 11.591 × 999 =
12. 12.22 × 99 =
13. 13.29 × 99 =
14. 14.5 × 9 =
15. 15.251 × 9 =
16. 16.6 × 9 =
17. 17.636 × 999 =
18. 18.815 × 999 =
19. 19.78 × 99 =
20. 20.123 × 9 =
21. 21.61 × 99 =
22. 22.97 × 99 =
23. 23.3 × 9 =
24. 24.3 × 9 =
25. 25.39 × 99 =
26. 26.702 × 999 =
27. 27.851 × 999 =
28. 28.2 × 9 =
29. 29.749 × 999 =
30. 30.5101 × 999 =
31. 31.64 × 9 =
32. 32.26 × 99 =
33. 33.854 × 999 =
34. 34.4 × 9 =
35. 35.44 × 99 =
36. 36.19 × 9 =
37. 37.155 × 999 =
38. 38.4 × 9 =
39. 39.34 × 99 =
40. 40.108 × 9 =

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