Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 612 · 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. 1.8 × 99 =
2. 2.6 × 9 =
3. 3.3 × 9 =
4. 4.82 × 9 =
5. 5.45 × 99 =
6. 6.5 × 9 =
7. 7.7 × 9 =
8. 8.205 × 999 =
9. 9.21331 × 999 =
10. 10.56 × 99 =
11. 11.13 × 9 =
12. 12.425 × 999 =
13. 13.491 × 99 =
14. 14.789 × 999 =
15. 15.96 × 99 =
16. 16.623 × 999 =
17. 17.2227 × 99 =
18. 18.5 × 99 =
19. 19.234 × 9 =
20. 20.91 × 99 =
21. 21.22 × 99 =
22. 22.81 × 99 =
23. 23.47 × 99 =
24. 24.8958 × 999 =
25. 25.7 × 9 =
26. 26.21693 × 999 =
27. 27.5 × 9 =
28. 28.914 × 99 =
29. 29.293 × 999 =
30. 30.7023 × 999 =
31. 31.201 × 999 =
32. 32.594 × 999 =
33. 33.6 × 9 =
34. 34.19 × 99 =
35. 35.53 × 999 =
36. 36.224 × 9 =
37. 37.217 × 9 =
38. 38.52 × 99 =
39. 39.4404 × 999 =
40. 40.7 × 9 =

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