Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 732 · 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. 1.23942 × 999 =
2. 2.4 × 9 =
3. 3.11 × 99 =
4. 4.4 × 9 =
5. 5.225 × 999 =
6. 6.388 × 999 =
7. 7.45 × 99 =
8. 8.449 × 99 =
9. 9.7061 × 999 =
10. 10.109 × 9 =
11. 11.6 × 99 =
12. 12.5 × 9 =
13. 13.922 × 999 =
14. 14.7 × 9 =
15. 15.7 × 9 =
16. 16.915 × 99 =
17. 17.48 × 99 =
18. 18.91 × 999 =
19. 19.242 × 999 =
20. 20.46 × 99 =
21. 21.44 × 99 =
22. 22.19 × 99 =
23. 23.742 × 999 =
24. 24.264 × 999 =
25. 25.13 × 99 =
26. 26.39 × 99 =
27. 27.431 × 999 =
28. 28.799 × 999 =
29. 29.7 × 9 =
30. 30.438 × 999 =
31. 31.555 × 999 =
32. 32.8 × 9 =
33. 33.3 × 99 =
34. 34.103 × 9 =
35. 35.6 × 9 =
36. 36.83 × 99 =
37. 37.15778 × 999 =
38. 38.206 × 9 =
39. 39.2163 × 99 =
40. 40.36 × 99 =

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