Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 739 · 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. 2.12055 × 999 =
3. 3.22094 × 999 =
4. 4.241 × 9 =
5. 5.67 × 9 =
6. 6.2 × 9 =
7. 7.84 × 9 =
8. 8.837 × 999 =
9. 9.1056 × 99 =
10. 10.19795 × 999 =
11. 11.6 × 9 =
12. 12.13409 × 999 =
13. 13.4 × 9 =
14. 14.7 × 9 =
15. 15.7 × 9 =
16. 16.2 × 9 =
17. 17.19 × 99 =
18. 18.255 × 999 =
19. 19.8 × 9 =
20. 20.183 × 9 =
21. 21.631 × 999 =
22. 22.4 × 9 =
23. 23.2 × 9 =
24. 24.909 × 99 =
25. 25.631 × 99 =
26. 26.4 × 9 =
27. 27.87 × 999 =
28. 28.41 × 99 =
29. 29.2095 × 99 =
30. 30.35 × 9 =
31. 31.17 × 99 =
32. 32.61 × 99 =
33. 33.4 × 9 =
34. 34.227 × 9 =
35. 35.5 × 9 =
36. 36.4 × 9 =
37. 37.991 × 999 =
38. 38.52 × 99 =
39. 39.12874 × 999 =
40. 40.28 × 999 =

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