Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 150 · 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. 1.93 × 99 =
2. 2.3 × 9 =
3. 3.8 × 9 =
4. 4.84 × 99 =
5. 5.5 × 9 =
6. 6.4 × 9 =
7. 7.797 × 999 =
8. 8.1623 × 99 =
9. 9.56 × 99 =
10. 10.8 × 9 =
11. 11.936 × 999 =
12. 12.58 × 99 =
13. 13.99 × 9 =
14. 14.107 × 99 =
15. 15.249 × 9 =
16. 16.536 × 999 =
17. 17.28 × 99 =
18. 18.539 × 999 =
19. 19.55 × 99 =
20. 20.1738 × 99 =
21. 21.783 × 999 =
22. 22.2 × 9 =
23. 23.3 × 99 =
24. 24.92 × 99 =
25. 25.594 × 999 =
26. 26.8 × 9 =
27. 27.5931 × 999 =
28. 28.88 × 9 =
29. 29.6 × 9 =
30. 30.836 × 999 =
31. 31.2858 × 99 =
32. 32.991 × 99 =
33. 33.632 × 999 =
34. 34.3 × 9 =
35. 35.69 × 99 =
36. 36.4 × 9 =
37. 37.1252 × 99 =
38. 38.8 × 9 =
39. 39.8 × 9 =
40. 40.471 × 999 =

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