Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 387 · 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. 2.868 × 999 =
3. 3.433 × 999 =
4. 4.547 × 999 =
5. 5.189 × 999 =
6. 6.7 × 99 =
7. 7.237 × 9 =
8. 8.5852 × 999 =
9. 9.83 × 99 =
10. 10.162 × 99 =
11. 11.3 × 9 =
12. 12.51 × 99 =
13. 13.4 × 99 =
14. 14.265 × 9 =
15. 15.5 × 9 =
16. 16.14 × 99 =
17. 17.8426 × 999 =
18. 18.8 × 9 =
19. 19.95 × 99 =
20. 20.2 × 9 =
21. 21.43 × 999 =
22. 22.3 × 9 =
23. 23.2 × 9 =
24. 24.7 × 9 =
25. 25.493 × 999 =
26. 26.5 × 9 =
27. 27.17 × 999 =
28. 28.76 × 9 =
29. 29.61 × 9 =
30. 30.537 × 999 =
31. 31.829 × 999 =
32. 32.479 × 999 =
33. 33.29 × 99 =
34. 34.81 × 99 =
35. 35.301 × 999 =
36. 36.7 × 99 =
37. 37.89 × 999 =
38. 38.8 × 9 =
39. 39.2 × 9 =
40. 40.746 × 999 =

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