Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 525 · 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. 1.778 × 999 =
2. 2.2 × 9 =
3. 3.54 × 9 =
4. 4.1937 × 99 =
5. 5.76 × 9 =
6. 6.1139 × 99 =
7. 7.972 × 999 =
8. 8.5 × 999 =
9. 9.671 × 999 =
10. 10.439 × 999 =
11. 11.7 × 9 =
12. 12.88 × 99 =
13. 13.59 × 99 =
14. 14.3 × 9 =
15. 15.98 × 9 =
16. 16.24 × 99 =
17. 17.71 × 99 =
18. 18.255 × 9 =
19. 19.1846 × 99 =
20. 20.64 × 99 =
21. 21.49 × 99 =
22. 22.3 × 99 =
23. 23.3 × 9 =
24. 24.11 × 99 =
25. 25.109 × 999 =
26. 26.3 × 9 =
27. 27.7 × 9 =
28. 28.779 × 999 =
29. 29.3 × 9 =
30. 30.2 × 9 =
31. 31.189 × 999 =
32. 32.89 × 99 =
33. 33.6 × 9 =
34. 34.898 × 999 =
35. 35.61 × 99 =
36. 36.54 × 99 =
37. 37.45 × 9 =
38. 38.173 × 9 =
39. 39.64 × 99 =
40. 40.933 × 999 =

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