Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 425 · 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. 1.599 × 999 =
2. 2.96 × 99 =
3. 3.58 × 99 =
4. 4.87 × 99 =
5. 5.8 × 9 =
6. 6.4962 × 999 =
7. 7.5 × 99 =
8. 8.5 × 9 =
9. 9.6 × 9 =
10. 10.55 × 999 =
11. 11.15 × 99 =
12. 12.101 × 999 =
13. 13.45 × 99 =
14. 14.73 × 99 =
15. 15.182 × 9 =
16. 16.59 × 99 =
17. 17.909 × 99 =
18. 18.98 × 9 =
19. 19.7 × 9 =
20. 20.868 × 999 =
21. 21.2966 × 99 =
22. 22.93 × 99 =
23. 23.6 × 99 =
24. 24.2615 × 99 =
25. 25.65 × 99 =
26. 26.31 × 99 =
27. 27.101 × 9 =
28. 28.8 × 9 =
29. 29.63 × 9 =
30. 30.3 × 9 =
31. 31.836 × 999 =
32. 32.809 × 999 =
33. 33.647 × 99 =
34. 34.77 × 9 =
35. 35.27287 × 999 =
36. 36.191 × 9 =
37. 37.4 × 9 =
38. 38.14 × 9 =
39. 39.79 × 99 =
40. 40.794 × 999 =

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