Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 824 · 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. 1.436 × 999 =
2. 2.6 × 9 =
3. 3.855 × 999 =
4. 4.16623 × 999 =
5. 5.4 × 9 =
6. 6.813 × 999 =
7. 7.11 × 99 =
8. 8.3 × 99 =
9. 9.8 × 99 =
10. 10.10278 × 999 =
11. 11.3 × 9 =
12. 12.72 × 99 =
13. 13.4 × 9 =
14. 14.2 × 9 =
15. 15.5 × 9 =
16. 16.8 × 9 =
17. 17.838 × 999 =
18. 18.86 × 9 =
19. 19.34 × 99 =
20. 20.5 × 99 =
21. 21.156 × 999 =
22. 22.957 × 99 =
23. 23.71 × 99 =
24. 24.2 × 9 =
25. 25.258 × 9 =
26. 26.7 × 9 =
27. 27.47 × 999 =
28. 28.793 × 999 =
29. 29.52 × 99 =
30. 30.2 × 9 =
31. 31.992 × 999 =
32. 32.269 × 99 =
33. 33.1344 × 99 =
34. 34.28651 × 999 =
35. 35.33 × 99 =
36. 36.586 × 999 =
37. 37.1718 × 99 =
38. 38.2 × 9 =
39. 39.985 × 99 =
40. 40.437 × 999 =

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