Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 645 · 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. 1.11 × 99 =
2. 2.35 × 9 =
3. 3.77 × 99 =
4. 4.5 × 9 =
5. 5.15 × 99 =
6. 6.2 × 9 =
7. 7.18755 × 999 =
8. 8.2 × 9 =
9. 9.1339 × 99 =
10. 10.577 × 999 =
11. 11.1695 × 99 =
12. 12.8 × 9 =
13. 13.4 × 99 =
14. 14.2541 × 99 =
15. 15.3 × 9 =
16. 16.461 × 999 =
17. 17.78 × 99 =
18. 18.2 × 9 =
19. 19.13 × 99 =
20. 20.803 × 999 =
21. 21.2 × 9 =
22. 22.718 × 999 =
23. 23.9 × 999 =
24. 24.2 × 9 =
25. 25.387 × 999 =
26. 26.24 × 99 =
27. 27.1446 × 99 =
28. 28.41 × 99 =
29. 29.13 × 99 =
30. 30.94 × 9 =
31. 31.361 × 99 =
32. 32.18411 × 999 =
33. 33.64 × 99 =
34. 34.79 × 9 =
35. 35.11939 × 999 =
36. 36.4129 × 999 =
37. 37.279 × 999 =
38. 38.385 × 99 =
39. 39.15 × 99 =
40. 40.56 × 9 =

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