Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 472 · 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. 1.93 × 99 =
2. 2.7 × 99 =
3. 3.104 × 9 =
4. 4.68 × 99 =
5. 5.72 × 99 =
6. 6.7 × 9 =
7. 7.51 × 99 =
8. 8.255 × 999 =
9. 9.94 × 99 =
10. 10.51 × 99 =
11. 11.4 × 9 =
12. 12.98 × 99 =
13. 13.23726 × 999 =
14. 14.401 × 999 =
15. 15.792 × 999 =
16. 16.905 × 999 =
17. 17.171 × 999 =
18. 18.371 × 999 =
19. 19.1031 × 99 =
20. 20.246 × 999 =
21. 21.205 × 999 =
22. 22.25 × 99 =
23. 23.7 × 9 =
24. 24.89 × 99 =
25. 25.15 × 99 =
26. 26.2846 × 99 =
27. 27.141 × 9 =
28. 28.23 × 99 =
29. 29.51 × 99 =
30. 30.11 × 99 =
31. 31.1174 × 99 =
32. 32.69 × 999 =
33. 33.19 × 99 =
34. 34.7558 × 999 =
35. 35.8 × 9 =
36. 36.14953 × 999 =
37. 37.637 × 999 =
38. 38.626 × 999 =
39. 39.827 × 99 =
40. 40.5 × 9 =

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