Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 487 · 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. 1.83 × 99 =
2. 2.601 × 999 =
3. 3.5 × 9 =
4. 4.42 × 99 =
5. 5.7 × 9 =
6. 6.2 × 9 =
7. 7.3 × 9 =
8. 8.19 × 99 =
9. 9.3 × 9 =
10. 10.25 × 99 =
11. 11.838 × 999 =
12. 12.102 × 999 =
13. 13.652 × 999 =
14. 14.641 × 999 =
15. 15.35 × 99 =
16. 16.16 × 999 =
17. 17.5 × 9 =
18. 18.353 × 999 =
19. 19.11 × 99 =
20. 20.12 × 99 =
21. 21.366 × 999 =
22. 22.78 × 99 =
23. 23.96 × 9 =
24. 24.64 × 99 =
25. 25.4 × 9 =
26. 26.14766 × 999 =
27. 27.233 × 9 =
28. 28.4 × 9 =
29. 29.44 × 99 =
30. 30.21301 × 999 =
31. 31.155 × 999 =
32. 32.49 × 99 =
33. 33.29667 × 999 =
34. 34.11 × 9 =
35. 35.952 × 999 =
36. 36.66 × 99 =
37. 37.2 × 9 =
38. 38.18 × 99 =
39. 39.5 × 9 =
40. 40.965 × 999 =

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