Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 38 · 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. 1.16 × 99 =
2. 2.8 × 9 =
3. 3.7 × 9 =
4. 4.455 × 999 =
5. 5.4 × 9 =
6. 6.338 × 999 =
7. 7.2 × 9 =
8. 8.8 × 99 =
9. 9.97 × 99 =
10. 10.306 × 99 =
11. 11.64 × 99 =
12. 12.871 × 999 =
13. 13.1104 × 99 =
14. 14.16821 × 999 =
15. 15.484 × 999 =
16. 16.6 × 9 =
17. 17.258 × 9 =
18. 18.2 × 9 =
19. 19.91 × 99 =
20. 20.2784 × 99 =
21. 21.58 × 99 =
22. 22.2 × 9 =
23. 23.17 × 99 =
24. 24.5 × 9 =
25. 25.6 × 9 =
26. 26.3 × 9 =
27. 27.631 × 999 =
28. 28.16 × 99 =
29. 29.52 × 99 =
30. 30.87 × 999 =
31. 31.93 × 99 =
32. 32.117 × 9 =
33. 33.7 × 9 =
34. 34.82 × 99 =
35. 35.74 × 99 =
36. 36.18 × 999 =
37. 37.67 × 9 =
38. 38.49 × 99 =
39. 39.1381 × 99 =
40. 40.7 × 99 =

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