Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 417 · 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. 1.4 × 9 =
2. 2.2816 × 99 =
3. 3.16 × 99 =
4. 4.43 × 99 =
5. 5.52 × 99 =
6. 6.2 × 9 =
7. 7.4 × 9 =
8. 8.611 × 999 =
9. 9.1596 × 99 =
10. 10.17113 × 999 =
11. 11.16954 × 999 =
12. 12.6 × 9 =
13. 13.3 × 9 =
14. 14.84 × 99 =
15. 15.2464 × 99 =
16. 16.82 × 99 =
17. 17.768 × 999 =
18. 18.417 × 999 =
19. 19.6 × 9 =
20. 20.71 × 99 =
21. 21.9 × 99 =
22. 22.53 × 99 =
23. 23.82 × 99 =
24. 24.665 × 999 =
25. 25.2 × 9 =
26. 26.589 × 999 =
27. 27.7 × 99 =
28. 28.47 × 9 =
29. 29.94 × 99 =
30. 30.52 × 99 =
31. 31.65 × 99 =
32. 32.3 × 9 =
33. 33.17 × 99 =
34. 34.126 × 9 =
35. 35.56 × 99 =
36. 36.215 × 9 =
37. 37.21 × 99 =
38. 38.2048 × 999 =
39. 39.6 × 9 =
40. 40.7 × 9 =

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