Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 796 · 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. 1.218 × 9 =
2. 2.2 × 9 =
3. 3.91 × 9 =
4. 4.8 × 9 =
5. 5.3 × 9 =
6. 6.138 × 9 =
7. 7.42 × 99 =
8. 8.204 × 9 =
9. 9.2897 × 999 =
10. 10.3 × 9 =
11. 11.684 × 99 =
12. 12.135 × 999 =
13. 13.808 × 999 =
14. 14.731 × 999 =
15. 15.492 × 999 =
16. 16.21 × 99 =
17. 17.101 × 9 =
18. 18.62 × 99 =
19. 19.23 × 99 =
20. 20.4 × 9 =
21. 21.4 × 9 =
22. 22.8 × 9 =
23. 23.3 × 9 =
24. 24.4 × 9 =
25. 25.23519 × 999 =
26. 26.193 × 999 =
27. 27.558 × 999 =
28. 28.2638 × 99 =
29. 29.88 × 99 =
30. 30.96 × 99 =
31. 31.225 × 9 =
32. 32.2203 × 99 =
33. 33.58 × 9 =
34. 34.67 × 99 =
35. 35.183 × 9 =
36. 36.6 × 9 =
37. 37.5 × 9 =
38. 38.5 × 9 =
39. 39.29 × 99 =
40. 40.2623 × 99 =

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