Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 476 · 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. 1.1731 × 99 =
2. 2.2938 × 99 =
3. 3.95 × 99 =
4. 4.32 × 99 =
5. 5.257 × 99 =
6. 6.76 × 9 =
7. 7.724 × 999 =
8. 8.77 × 99 =
9. 9.231 × 999 =
10. 10.41 × 99 =
11. 11.47 × 99 =
12. 12.51 × 99 =
13. 13.591 × 999 =
14. 14.231 × 999 =
15. 15.5 × 9 =
16. 16.188 × 9 =
17. 17.2 × 9 =
18. 18.31 × 99 =
19. 19.4 × 9 =
20. 20.699 × 999 =
21. 21.1637 × 99 =
22. 22.29 × 99 =
23. 23.955 × 999 =
24. 24.72 × 99 =
25. 25.2672 × 99 =
26. 26.4 × 9 =
27. 27.8 × 99 =
28. 28.1699 × 99 =
29. 29.7 × 9 =
30. 30.169 × 999 =
31. 31.849 × 999 =
32. 32.1405 × 99 =
33. 33.4 × 9 =
34. 34.38 × 99 =
35. 35.96 × 99 =
36. 36.73 × 99 =
37. 37.1811 × 99 =
38. 38.801 × 999 =
39. 39.444 × 999 =
40. 40.17825 × 999 =

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