Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 854 · 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. 1.52 × 999 =
2. 2.98 × 99 =
3. 3.15595 × 999 =
4. 4.505 × 999 =
5. 5.53 × 9 =
6. 6.99 × 9 =
7. 7.204 × 999 =
8. 8.22 × 99 =
9. 9.14 × 99 =
10. 10.75 × 99 =
11. 11.1946 × 99 =
12. 12.82 × 99 =
13. 13.7 × 9 =
14. 14.2 × 9 =
15. 15.53 × 99 =
16. 16.241 × 999 =
17. 17.173 × 99 =
18. 18.8 × 9 =
19. 19.8 × 9 =
20. 20.7 × 9 =
21. 21.12 × 99 =
22. 22.643 × 999 =
23. 23.4 × 9 =
24. 24.6 × 9 =
25. 25.8 × 9 =
26. 26.194 × 9 =
27. 27.737 × 999 =
28. 28.7 × 9 =
29. 29.46 × 99 =
30. 30.11599 × 999 =
31. 31.18 × 99 =
32. 32.8 × 9 =
33. 33.18 × 99 =
34. 34.807 × 999 =
35. 35.5 × 9 =
36. 36.37 × 99 =
37. 37.732 × 999 =
38. 38.803 × 999 =
39. 39.10371 × 999 =
40. 40.156 × 999 =

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