Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 932 · 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. 1.2 × 9 =
2. 2.234 × 999 =
3. 3.397 × 999 =
4. 4.3 × 9 =
5. 5.2 × 9 =
6. 6.1327 × 99 =
7. 7.38 × 9 =
8. 8.1219 × 99 =
9. 9.6 × 9 =
10. 10.7 × 9 =
11. 11.21 × 99 =
12. 12.764 × 999 =
13. 13.83 × 99 =
14. 14.3 × 9 =
15. 15.194 × 99 =
16. 16.28311 × 999 =
17. 17.277 × 999 =
18. 18.43 × 99 =
19. 19.8 × 9 =
20. 20.2801 × 99 =
21. 21.52 × 99 =
22. 22.5 × 9 =
23. 23.598 × 999 =
24. 24.31 × 9 =
25. 25.931 × 999 =
26. 26.884 × 999 =
27. 27.67 × 99 =
28. 28.21 × 99 =
29. 29.71 × 99 =
30. 30.59 × 99 =
31. 31.194 × 99 =
32. 32.265 × 99 =
33. 33.72 × 99 =
34. 34.7 × 9 =
35. 35.168 × 9 =
36. 36.6 × 9 =
37. 37.8102 × 999 =
38. 38.11 × 999 =
39. 39.61 × 99 =
40. 40.71 × 99 =

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