Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 922 · 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. 2.51 × 999 =
3. 3.12 × 99 =
4. 4.27 × 99 =
5. 5.22 × 9 =
6. 6.4 × 9 =
7. 7.824 × 999 =
8. 8.65 × 99 =
9. 9.121 × 9 =
10. 10.126 × 99 =
11. 11.26769 × 999 =
12. 12.25 × 99 =
13. 13.3 × 9 =
14. 14.543 × 999 =
15. 15.82 × 99 =
16. 16.2 × 9 =
17. 17.3 × 9 =
18. 18.145 × 999 =
19. 19.3 × 9 =
20. 20.5 × 9 =
21. 21.4 × 9 =
22. 22.38 × 99 =
23. 23.31 × 99 =
24. 24.551 × 999 =
25. 25.31 × 99 =
26. 26.3 × 9 =
27. 27.138 × 9 =
28. 28.2 × 9 =
29. 29.149 × 999 =
30. 30.27 × 99 =
31. 31.83 × 99 =
32. 32.7 × 9 =
33. 33.27 × 99 =
34. 34.67 × 99 =
35. 35.7347 × 999 =
36. 36.5 × 9 =
37. 37.6411 × 999 =
38. 38.335 × 99 =
39. 39.52 × 99 =
40. 40.675 × 999 =

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