Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 440 · 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. 1.65 × 9 =
2. 2.7 × 9 =
3. 3.2625 × 99 =
4. 4.2 × 9 =
5. 5.4 × 9 =
6. 6.79 × 9 =
7. 7.882 × 999 =
8. 8.18636 × 999 =
9. 9.257 × 9 =
10. 10.451 × 999 =
11. 11.262 × 999 =
12. 12.813 × 999 =
13. 13.6 × 9 =
14. 14.88 × 99 =
15. 15.36 × 99 =
16. 16.4 × 9 =
17. 17.4 × 9 =
18. 18.7 × 9 =
19. 19.2905 × 99 =
20. 20.61 × 9 =
21. 21.802 × 999 =
22. 22.121 × 999 =
23. 23.11 × 99 =
24. 24.5 × 9 =
25. 25.1015 × 99 =
26. 26.28739 × 999 =
27. 27.4 × 9 =
28. 28.6 × 99 =
29. 29.191 × 9 =
30. 30.8 × 9 =
31. 31.8 × 9 =
32. 32.362 × 999 =
33. 33.3 × 9 =
34. 34.3 × 99 =
35. 35.732 × 999 =
36. 36.29 × 99 =
37. 37.49 × 99 =
38. 38.274 × 999 =
39. 39.23 × 99 =
40. 40.8 × 9 =

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