Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 775 · 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. 1.48 × 99 =
2. 2.8 × 9 =
3. 3.71 × 99 =
4. 4.593 × 999 =
5. 5.72 × 99 =
6. 6.801 × 999 =
7. 7.9451 × 999 =
8. 8.7 × 9 =
9. 9.93 × 999 =
10. 10.41 × 99 =
11. 11.7 × 9 =
12. 12.6 × 9 =
13. 13.7 × 9 =
14. 14.1626 × 99 =
15. 15.628 × 999 =
16. 16.487 × 99 =
17. 17.31 × 99 =
18. 18.68 × 99 =
19. 19.14 × 99 =
20. 20.64 × 99 =
21. 21.676 × 99 =
22. 22.8 × 99 =
23. 23.67 × 99 =
24. 24.6 × 9 =
25. 25.5 × 9 =
26. 26.718 × 999 =
27. 27.1547 × 99 =
28. 28.8 × 9 =
29. 29.9523 × 999 =
30. 30.31 × 9 =
31. 31.34 × 99 =
32. 32.451 × 999 =
33. 33.49 × 9 =
34. 34.121 × 9 =
35. 35.314 × 999 =
36. 36.566 × 999 =
37. 37.12345 × 999 =
38. 38.4 × 999 =
39. 39.3 × 9 =
40. 40.95 × 999 =

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