Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 270 · 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. 1.154 × 9 =
2. 2.683 × 999 =
3. 3.146 × 9 =
4. 4.71 × 99 =
5. 5.1516 × 999 =
6. 6.242 × 9 =
7. 7.574 × 999 =
8. 8.673 × 999 =
9. 9.602 × 99 =
10. 10.71 × 99 =
11. 11.18627 × 999 =
12. 12.4 × 9 =
13. 13.865 × 999 =
14. 14.24354 × 999 =
15. 15.7 × 99 =
16. 16.2 × 9 =
17. 17.465 × 999 =
18. 18.26 × 99 =
19. 19.7 × 9 =
20. 20.3 × 9 =
21. 21.2 × 9 =
22. 22.81 × 99 =
23. 23.3 × 9 =
24. 24.1509 × 99 =
25. 25.29 × 99 =
26. 26.42 × 999 =
27. 27.67 × 999 =
28. 28.87 × 99 =
29. 29.377 × 999 =
30. 30.211 × 9 =
31. 31.7 × 9 =
32. 32.8 × 9 =
33. 33.2 × 99 =
34. 34.193 × 9 =
35. 35.6 × 9 =
36. 36.3 × 9 =
37. 37.6 × 99 =
38. 38.34 × 9 =
39. 39.12 × 99 =
40. 40.759 × 999 =

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