Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 737 · 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. 1.35 × 999 =
2. 2.117 × 999 =
3. 3.2453 × 99 =
4. 4.95 × 99 =
5. 5.62 × 99 =
6. 6.2958 × 99 =
7. 7.89 × 99 =
8. 8.186 × 999 =
9. 9.612 × 999 =
10. 10.10333 × 999 =
11. 11.76 × 9 =
12. 12.201 × 999 =
13. 13.2 × 9 =
14. 14.21 × 99 =
15. 15.2 × 9 =
16. 16.328 × 999 =
17. 17.84 × 99 =
18. 18.8 × 9 =
19. 19.129 × 9 =
20. 20.81 × 99 =
21. 21.1103 × 99 =
22. 22.81 × 99 =
23. 23.897 × 99 =
24. 24.2569 × 99 =
25. 25.62 × 99 =
26. 26.3 × 9 =
27. 27.689 × 999 =
28. 28.5 × 9 =
29. 29.487 × 999 =
30. 30.49 × 99 =
31. 31.564 × 999 =
32. 32.71 × 99 =
33. 33.458 × 999 =
34. 34.3 × 9 =
35. 35.79 × 99 =
36. 36.18 × 99 =
37. 37.2 × 9 =
38. 38.29534 × 999 =
39. 39.117 × 9 =
40. 40.4 × 9 =

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