Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 569 · 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. 1.131 × 9 =
2. 2.6 × 9 =
3. 3.28471 × 999 =
4. 4.8 × 9 =
5. 5.97 × 999 =
6. 6.205 × 999 =
7. 7.717 × 999 =
8. 8.787 × 999 =
9. 9.214 × 9 =
10. 10.22 × 99 =
11. 11.5 × 9 =
12. 12.438 × 99 =
13. 13.53 × 9 =
14. 14.328 × 999 =
15. 15.948 × 999 =
16. 16.843 × 99 =
17. 17.79 × 99 =
18. 18.206 × 9 =
19. 19.276 × 999 =
20. 20.3 × 9 =
21. 21.427 × 999 =
22. 22.64 × 99 =
23. 23.75 × 99 =
24. 24.12 × 99 =
25. 25.137 × 999 =
26. 26.53 × 99 =
27. 27.58 × 99 =
28. 28.3 × 9 =
29. 29.553 × 999 =
30. 30.2 × 9 =
31. 31.11437 × 999 =
32. 32.36 × 99 =
33. 33.8 × 9 =
34. 34.8 × 99 =
35. 35.275 × 999 =
36. 36.637 × 999 =
37. 37.6858 × 999 =
38. 38.26 × 99 =
39. 39.6733 × 999 =
40. 40.5 × 9 =

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