Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 772 · 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. 1.188 × 9 =
2. 2.66 × 99 =
3. 3.994 × 999 =
4. 4.59 × 99 =
5. 5.713 × 999 =
6. 6.879 × 999 =
7. 7.18 × 99 =
8. 8.22 × 99 =
9. 9.2 × 9 =
10. 10.4 × 9 =
11. 11.2675 × 99 =
12. 12.17321 × 999 =
13. 13.18478 × 999 =
14. 14.89 × 99 =
15. 15.5 × 9 =
16. 16.3 × 9 =
17. 17.11 × 99 =
18. 18.59 × 99 =
19. 19.45 × 99 =
20. 20.7 × 9 =
21. 21.11 × 999 =
22. 22.3 × 9 =
23. 23.7 × 9 =
24. 24.43 × 9 =
25. 25.8 × 9 =
26. 26.51 × 99 =
27. 27.845 × 999 =
28. 28.157 × 9 =
29. 29.74 × 99 =
30. 30.6 × 9 =
31. 31.5 × 9 =
32. 32.14 × 999 =
33. 33.95 × 99 =
34. 34.869 × 999 =
35. 35.19795 × 999 =
36. 36.132 × 999 =
37. 37.402 × 999 =
38. 38.5 × 9 =
39. 39.8 × 9 =
40. 40.58 × 99 =

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