Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 770 · 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. 1.53 × 99 =
2. 2.679 × 999 =
3. 3.2 × 9 =
4. 4.7 × 9 =
5. 5.2527 × 99 =
6. 6.7 × 9 =
7. 7.602 × 999 =
8. 8.951 × 999 =
9. 9.789 × 999 =
10. 10.3 × 9 =
11. 11.8524 × 999 =
12. 12.393 × 999 =
13. 13.3 × 9 =
14. 14.464 × 999 =
15. 15.3 × 9 =
16. 16.97 × 99 =
17. 17.1418 × 99 =
18. 18.228 × 9 =
19. 19.236 × 99 =
20. 20.5 × 9 =
21. 21.27111 × 999 =
22. 22.6 × 9 =
23. 23.5 × 9 =
24. 24.27 × 99 =
25. 25.10721 × 999 =
26. 26.2783 × 99 =
27. 27.4 × 9 =
28. 28.8 × 9 =
29. 29.93 × 99 =
30. 30.655 × 999 =
31. 31.3 × 9 =
32. 32.2 × 9 =
33. 33.43 × 9 =
34. 34.52 × 99 =
35. 35.2397 × 99 =
36. 36.5 × 9 =
37. 37.21982 × 999 =
38. 38.2 × 9 =
39. 39.22928 × 999 =
40. 40.7 × 99 =

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