Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 236 · 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. 1.8 × 9 =
2. 2.4 × 9 =
3. 3.13 × 9 =
4. 4.21 × 99 =
5. 5.1822 × 999 =
6. 6.8 × 9 =
7. 7.6 × 9 =
8. 8.622 × 999 =
9. 9.7742 × 999 =
10. 10.14 × 99 =
11. 11.109 × 999 =
12. 12.3 × 9 =
13. 13.31 × 99 =
14. 14.323 × 99 =
15. 15.238 × 999 =
16. 16.761 × 99 =
17. 17.786 × 99 =
18. 18.77 × 99 =
19. 19.5 × 9 =
20. 20.8 × 9 =
21. 21.81 × 99 =
22. 22.369 × 999 =
23. 23.513 × 999 =
24. 24.3 × 9 =
25. 25.925 × 99 =
26. 26.188 × 999 =
27. 27.835 × 999 =
28. 28.692 × 999 =
29. 29.2 × 9 =
30. 30.59 × 99 =
31. 31.732 × 999 =
32. 32.13731 × 999 =
33. 33.96 × 99 =
34. 34.2021 × 99 =
35. 35.29222 × 999 =
36. 36.201 × 99 =
37. 37.2 × 9 =
38. 38.2635 × 99 =
39. 39.7 × 99 =
40. 40.94 × 99 =

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