Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 237 · 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. 1.3 × 9 =
2. 2.2 × 999 =
3. 3.221 × 9 =
4. 4.89 × 99 =
5. 5.5 × 9 =
6. 6.121 × 999 =
7. 7.3 × 9 =
8. 8.6 × 9 =
9. 9.2061 × 99 =
10. 10.82 × 9 =
11. 11.4 × 9 =
12. 12.993 × 999 =
13. 13.8 × 9 =
14. 14.523 × 999 =
15. 15.51 × 99 =
16. 16.105 × 99 =
17. 17.16954 × 999 =
18. 18.686 × 999 =
19. 19.3 × 9 =
20. 20.28 × 99 =
21. 21.38 × 99 =
22. 22.345 × 999 =
23. 23.35 × 99 =
24. 24.6 × 9 =
25. 25.17 × 99 =
26. 26.32 × 999 =
27. 27.319 × 99 =
28. 28.43 × 99 =
29. 29.21934 × 999 =
30. 30.612 × 999 =
31. 31.6 × 9 =
32. 32.4 × 9 =
33. 33.2 × 9 =
34. 34.21678 × 999 =
35. 35.10698 × 999 =
36. 36.5 × 9 =
37. 37.2291 × 99 =
38. 38.89 × 99 =
39. 39.146 × 9 =
40. 40.54 × 99 =

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