Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 982 · 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. 1.992 × 999 =
2. 2.34 × 99 =
3. 3.2248 × 99 =
4. 4.2 × 9 =
5. 5.2 × 9 =
6. 6.7 × 9 =
7. 7.5 × 9 =
8. 8.3 × 9 =
9. 9.581 × 999 =
10. 10.109 × 999 =
11. 11.4 × 9 =
12. 12.57 × 9 =
13. 13.4 × 9 =
14. 14.74 × 999 =
15. 15.14 × 9 =
16. 16.6 × 9 =
17. 17.8 × 99 =
18. 18.4 × 99 =
19. 19.5 × 9 =
20. 20.94 × 99 =
21. 21.11375 × 999 =
22. 22.3 × 9 =
23. 23.3 × 9 =
24. 24.714 × 999 =
25. 25.635 × 999 =
26. 26.93 × 99 =
27. 27.46 × 99 =
28. 28.1934 × 99 =
29. 29.25 × 99 =
30. 30.4 × 9 =
31. 31.13185 × 999 =
32. 32.5 × 9 =
33. 33.34 × 999 =
34. 34.89 × 99 =
35. 35.1919 × 99 =
36. 36.78 × 99 =
37. 37.7 × 99 =
38. 38.2 × 9 =
39. 39.583 × 999 =
40. 40.63 × 99 =

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