Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 623 · 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. 2.19841 × 999 =
3. 3.11 × 99 =
4. 4.48 × 99 =
5. 5.12844 × 999 =
6. 6.672 × 999 =
7. 7.919 × 999 =
8. 8.2 × 99 =
9. 9.462 × 999 =
10. 10.56 × 99 =
11. 11.44 × 9 =
12. 12.228 × 9 =
13. 13.381 × 999 =
14. 14.61 × 99 =
15. 15.1372 × 99 =
16. 16.2 × 99 =
17. 17.979 × 999 =
18. 18.6 × 9 =
19. 19.146 × 9 =
20. 20.85 × 99 =
21. 21.55 × 99 =
22. 22.8 × 9 =
23. 23.6 × 9 =
24. 24.357 × 999 =
25. 25.62 × 99 =
26. 26.112 × 9 =
27. 27.636 × 999 =
28. 28.47 × 999 =
29. 29.2845 × 99 =
30. 30.1802 × 99 =
31. 31.29 × 99 =
32. 32.374 × 99 =
33. 33.242 × 999 =
34. 34.724 × 999 =
35. 35.72 × 9 =
36. 36.863 × 999 =
37. 37.79 × 99 =
38. 38.261 × 9 =
39. 39.97 × 99 =
40. 40.217 × 9 =

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