Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 898 · 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. 2.224 × 999 =
3. 3.9513 × 999 =
4. 4.62 × 99 =
5. 5.993 × 999 =
6. 6.37 × 9 =
7. 7.15 × 99 =
8. 8.5 × 9 =
9. 9.46 × 99 =
10. 10.20913 × 999 =
11. 11.1561 × 999 =
12. 12.42 × 99 =
13. 13.3 × 9 =
14. 14.4012 × 999 =
15. 15.21 × 99 =
16. 16.14 × 99 =
17. 17.43 × 999 =
18. 18.2 × 9 =
19. 19.89 × 99 =
20. 20.42 × 9 =
21. 21.3 × 9 =
22. 22.71 × 99 =
23. 23.2234 × 99 =
24. 24.4 × 9 =
25. 25.261 × 999 =
26. 26.21749 × 999 =
27. 27.46 × 999 =
28. 28.2 × 9 =
29. 29.72 × 9 =
30. 30.16 × 99 =
31. 31.6 × 9 =
32. 32.41 × 99 =
33. 33.11811 × 999 =
34. 34.197 × 999 =
35. 35.22775 × 999 =
36. 36.3 × 9 =
37. 37.4 × 99 =
38. 38.66 × 99 =
39. 39.31 × 99 =
40. 40.78 × 99 =

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