Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 862 · 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. 1.6 × 9 =
2. 2.111 × 999 =
3. 3.6 × 9 =
4. 4.822 × 999 =
5. 5.7 × 9 =
6. 6.361 × 999 =
7. 7.8 × 9 =
8. 8.45 × 99 =
9. 9.6 × 9 =
10. 10.15645 × 999 =
11. 11.3 × 99 =
12. 12.254 × 999 =
13. 13.3 × 9 =
14. 14.1032 × 99 =
15. 15.3 × 9 =
16. 16.12799 × 999 =
17. 17.2 × 9 =
18. 18.2839 × 99 =
19. 19.7 × 9 =
20. 20.8 × 9 =
21. 21.31 × 99 =
22. 22.2 × 9 =
23. 23.6 × 9 =
24. 24.903 × 999 =
25. 25.8409 × 999 =
26. 26.185 × 9 =
27. 27.67 × 99 =
28. 28.8 × 9 =
29. 29.683 × 999 =
30. 30.22 × 99 =
31. 31.3 × 9 =
32. 32.13 × 99 =
33. 33.4 × 99 =
34. 34.87 × 99 =
35. 35.5 × 9 =
36. 36.91 × 99 =
37. 37.653 × 999 =
38. 38.86 × 99 =
39. 39.81 × 99 =
40. 40.2399 × 99 =

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