Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 914 · 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. 1.814 × 99 =
2. 2.6 × 9 =
3. 3.418 × 999 =
4. 4.12348 × 999 =
5. 5.3 × 9 =
6. 6.181 × 9 =
7. 7.5 × 9 =
8. 8.256 × 9 =
9. 9.352 × 99 =
10. 10.1591 × 99 =
11. 11.255 × 999 =
12. 12.261 × 9 =
13. 13.5 × 9 =
14. 14.409 × 999 =
15. 15.101 × 9 =
16. 16.7 × 9 =
17. 17.6048 × 999 =
18. 18.4 × 9 =
19. 19.91 × 99 =
20. 20.71 × 99 =
21. 21.25 × 99 =
22. 22.27 × 99 =
23. 23.78 × 9 =
24. 24.34 × 9 =
25. 25.23549 × 999 =
26. 26.5 × 999 =
27. 27.98 × 999 =
28. 28.1595 × 99 =
29. 29.2 × 9 =
30. 30.4 × 9 =
31. 31.128 × 999 =
32. 32.27565 × 999 =
33. 33.1412 × 99 =
34. 34.51 × 99 =
35. 35.5 × 99 =
36. 36.968 × 99 =
37. 37.37 × 99 =
38. 38.2 × 9 =
39. 39.197 × 9 =
40. 40.931 × 99 =

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