Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 85 · 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. 1.5 × 9 =
2. 2.1249 × 99 =
3. 3.97 × 99 =
4. 4.61 × 99 =
5. 5.757 × 999 =
6. 6.2241 × 99 =
7. 7.58 × 99 =
8. 8.2557 × 99 =
9. 9.856 × 999 =
10. 10.14 × 9 =
11. 11.22168 × 999 =
12. 12.8 × 9 =
13. 13.183 × 9 =
14. 14.3 × 9 =
15. 15.2 × 9 =
16. 16.7377 × 999 =
17. 17.1037 × 99 =
18. 18.17497 × 999 =
19. 19.8 × 9 =
20. 20.7 × 9 =
21. 21.41 × 99 =
22. 22.71 × 999 =
23. 23.131 × 999 =
24. 24.2 × 9 =
25. 25.24 × 99 =
26. 26.96 × 99 =
27. 27.2 × 9 =
28. 28.5 × 9 =
29. 29.6 × 9 =
30. 30.2 × 9 =
31. 31.331 × 999 =
32. 32.42 × 999 =
33. 33.6 × 9 =
34. 34.233 × 9 =
35. 35.533 × 999 =
36. 36.3 × 9 =
37. 37.74 × 99 =
38. 38.286 × 999 =
39. 39.29 × 99 =
40. 40.2372 × 999 =

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