Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 795 · 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. 1.29 × 99 =
2. 2.6 × 9 =
3. 3.6769 × 999 =
4. 4.567 × 99 =
5. 5.3 × 9 =
6. 6.72 × 9 =
7. 7.61 × 9 =
8. 8.2179 × 99 =
9. 9.10401 × 999 =
10. 10.255 × 999 =
11. 11.41 × 99 =
12. 12.181 × 9 =
13. 13.37 × 999 =
14. 14.18151 × 999 =
15. 15.914 × 999 =
16. 16.561 × 999 =
17. 17.574 × 999 =
18. 18.2 × 9 =
19. 19.673 × 99 =
20. 20.76 × 99 =
21. 21.64 × 99 =
22. 22.69 × 99 =
23. 23.3 × 9 =
24. 24.91 × 99 =
25. 25.6 × 9 =
26. 26.3 × 9 =
27. 27.7 × 9 =
28. 28.713 × 999 =
29. 29.1424 × 99 =
30. 30.6 × 9 =
31. 31.21 × 9 =
32. 32.602 × 999 =
33. 33.4294 × 999 =
34. 34.3 × 9 =
35. 35.2 × 9 =
36. 36.7 × 9 =
37. 37.7 × 9 =
38. 38.8 × 9 =
39. 39.4 × 9 =
40. 40.8 × 9 =

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