Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 654 · 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. 1.27 × 99 =
2. 2.421 × 999 =
3. 3.55 × 99 =
4. 4.436 × 999 =
5. 5.2 × 99 =
6. 6.291 × 999 =
7. 7.8 × 9 =
8. 8.27 × 99 =
9. 9.2796 × 99 =
10. 10.3 × 9 =
11. 11.2768 × 99 =
12. 12.8 × 9 =
13. 13.25 × 99 =
14. 14.8 × 9 =
15. 15.67 × 999 =
16. 16.4266 × 999 =
17. 17.63 × 99 =
18. 18.359 × 99 =
19. 19.13 × 99 =
20. 20.2 × 9 =
21. 21.44 × 99 =
22. 22.58 × 999 =
23. 23.2 × 9 =
24. 24.45 × 999 =
25. 25.625 × 999 =
26. 26.8 × 9 =
27. 27.159 × 9 =
28. 28.7132 × 999 =
29. 29.2 × 9 =
30. 30.3 × 9 =
31. 31.252 × 9 =
32. 32.663 × 999 =
33. 33.28281 × 999 =
34. 34.5 × 9 =
35. 35.272 × 99 =
36. 36.18 × 99 =
37. 37.7 × 99 =
38. 38.1499 × 99 =
39. 39.4 × 9 =
40. 40.207 × 9 =

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