Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 110 · 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. 1.10805 × 999 =
2. 2.21 × 99 =
3. 3.734 × 99 =
4. 4.596 × 99 =
5. 5.4 × 9 =
6. 6.2487 × 99 =
7. 7.81 × 99 =
8. 8.76 × 99 =
9. 9.1823 × 99 =
10. 10.87 × 99 =
11. 11.8 × 9 =
12. 12.201 × 9 =
13. 13.11 × 99 =
14. 14.95 × 99 =
15. 15.8 × 9 =
16. 16.7 × 9 =
17. 17.3 × 9 =
18. 18.237 × 9 =
19. 19.4 × 9 =
20. 20.153 × 9 =
21. 21.89 × 99 =
22. 22.195 × 999 =
23. 23.71 × 99 =
24. 24.466 × 999 =
25. 25.349 × 999 =
26. 26.408 × 999 =
27. 27.781 × 999 =
28. 28.33 × 99 =
29. 29.533 × 999 =
30. 30.27 × 99 =
31. 31.2 × 9 =
32. 32.13225 × 999 =
33. 33.7 × 9 =
34. 34.2 × 9 =
35. 35.237 × 9 =
36. 36.118 × 99 =
37. 37.103 × 9 =
38. 38.46 × 99 =
39. 39.3 × 9 =
40. 40.3 × 9 =

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