Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 377 · 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. 1.19107 × 999 =
2. 2.75 × 99 =
3. 3.28 × 999 =
4. 4.4 × 9 =
5. 5.7 × 9 =
6. 6.8 × 9 =
7. 7.10278 × 999 =
8. 8.341 × 999 =
9. 9.257 × 999 =
10. 10.27 × 99 =
11. 11.3 × 9 =
12. 12.23131 × 999 =
13. 13.1271 × 999 =
14. 14.321 × 999 =
15. 15.512 × 999 =
16. 16.268 × 9 =
17. 17.27396 × 999 =
18. 18.8 × 9 =
19. 19.1156 × 99 =
20. 20.3 × 99 =
21. 21.257 × 9 =
22. 22.1933 × 999 =
23. 23.4 × 9 =
24. 24.1706 × 99 =
25. 25.56 × 99 =
26. 26.23 × 99 =
27. 27.4 × 9 =
28. 28.5 × 9 =
29. 29.6 × 9 =
30. 30.776 × 99 =
31. 31.708 × 999 =
32. 32.841 × 999 =
33. 33.5 × 9 =
34. 34.14 × 99 =
35. 35.932 × 999 =
36. 36.4 × 99 =
37. 37.22121 × 999 =
38. 38.404 × 999 =
39. 39.915 × 999 =
40. 40.15 × 99 =

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