Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 971 · 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. 1.27 × 99 =
2. 2.675 × 999 =
3. 3.22 × 99 =
4. 4.2 × 9 =
5. 5.26 × 99 =
6. 6.22314 × 999 =
7. 7.46 × 99 =
8. 8.28 × 99 =
9. 9.8 × 9 =
10. 10.368 × 999 =
11. 11.403 × 999 =
12. 12.9 × 99 =
13. 13.1748 × 99 =
14. 14.2755 × 99 =
15. 15.72 × 99 =
16. 16.565 × 999 =
17. 17.2581 × 99 =
18. 18.5 × 9 =
19. 19.4566 × 999 =
20. 20.26 × 99 =
21. 21.4 × 9 =
22. 22.5 × 9 =
23. 23.5 × 9 =
24. 24.77 × 9 =
25. 25.968 × 999 =
26. 26.59 × 999 =
27. 27.2 × 9 =
28. 28.68 × 99 =
29. 29.241 × 99 =
30. 30.804 × 999 =
31. 31.65 × 9 =
32. 32.24 × 99 =
33. 33.31 × 99 =
34. 34.117 × 9 =
35. 35.7 × 9 =
36. 36.404 × 999 =
37. 37.1404 × 99 =
38. 38.2 × 9 =
39. 39.4 × 9 =
40. 40.31 × 999 =

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