Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 975 · 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. 1.83 × 99 =
2. 2.6 × 99 =
3. 3.2 × 99 =
4. 4.8 × 99 =
5. 5.19113 × 999 =
6. 6.923 × 999 =
7. 7.322 × 999 =
8. 8.93 × 99 =
9. 9.3 × 9 =
10. 10.83 × 99 =
11. 11.19 × 99 =
12. 12.85 × 99 =
13. 13.95 × 99 =
14. 14.5 × 9 =
15. 15.93 × 99 =
16. 16.1581 × 99 =
17. 17.3 × 9 =
18. 18.883 × 999 =
19. 19.28 × 9 =
20. 20.2649 × 99 =
21. 21.517 × 999 =
22. 22.274 × 999 =
23. 23.28 × 99 =
24. 24.2109 × 99 =
25. 25.129 × 9 =
26. 26.466 × 999 =
27. 27.4 × 99 =
28. 28.6 × 9 =
29. 29.7 × 9 =
30. 30.465 × 999 =
31. 31.437 × 999 =
32. 32.66 × 9 =
33. 33.3 × 9 =
34. 34.2 × 9 =
35. 35.21978 × 999 =
36. 36.165 × 9 =
37. 37.545 × 999 =
38. 38.72 × 99 =
39. 39.307 × 999 =
40. 40.431 × 999 =

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