Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 90 · 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. 1.939 × 999 =
2. 2.5 × 9 =
3. 3.8 × 9 =
4. 4.7 × 9 =
5. 5.1668 × 99 =
6. 6.5 × 99 =
7. 7.593 × 999 =
8. 8.117 × 9 =
9. 9.68 × 99 =
10. 10.427 × 999 =
11. 11.4 × 9 =
12. 12.197 × 9 =
13. 13.91 × 999 =
14. 14.33 × 99 =
15. 15.53 × 99 =
16. 16.21 × 99 =
17. 17.12 × 99 =
18. 18.44 × 99 =
19. 19.31 × 99 =
20. 20.7 × 9 =
21. 21.98 × 99 =
22. 22.912 × 999 =
23. 23.2 × 9 =
24. 24.1403 × 99 =
25. 25.2396 × 99 =
26. 26.1779 × 99 =
27. 27.111 × 999 =
28. 28.51 × 99 =
29. 29.5 × 9 =
30. 30.89 × 99 =
31. 31.149 × 9 =
32. 32.91 × 99 =
33. 33.1781 × 99 =
34. 34.465 × 99 =
35. 35.17 × 99 =
36. 36.81 × 99 =
37. 37.2 × 99 =
38. 38.2127 × 99 =
39. 39.977 × 999 =
40. 40.5 × 9 =

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