Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 788 · 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. 1.7 × 99 =
2. 2.224 × 9 =
3. 3.8744 × 999 =
4. 4.7 × 9 =
5. 5.89 × 99 =
6. 6.4 × 9 =
7. 7.85 × 99 =
8. 8.205 × 9 =
9. 9.8 × 9 =
10. 10.2 × 9 =
11. 11.367 × 999 =
12. 12.91 × 99 =
13. 13.22969 × 999 =
14. 14.46 × 9 =
15. 15.2 × 9 =
16. 16.75 × 99 =
17. 17.1172 × 99 =
18. 18.958 × 999 =
19. 19.8 × 9 =
20. 20.5 × 9 =
21. 21.118 × 999 =
22. 22.489 × 999 =
23. 23.168 × 99 =
24. 24.25949 × 999 =
25. 25.82 × 99 =
26. 26.4 × 9 =
27. 27.8 × 9 =
28. 28.714 × 99 =
29. 29.91 × 99 =
30. 30.32 × 99 =
31. 31.335 × 999 =
32. 32.278 × 999 =
33. 33.46 × 99 =
34. 34.207 × 99 =
35. 35.97 × 99 =
36. 36.1694 × 99 =
37. 37.2 × 9 =
38. 38.33 × 99 =
39. 39.5 × 9 =
40. 40.24738 × 999 =

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