Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 353 · 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. 1.139 × 999 =
2. 2.133 × 9 =
3. 3.191 × 9 =
4. 4.55 × 99 =
5. 5.91 × 99 =
6. 6.86 × 99 =
7. 7.631 × 999 =
8. 8.132 × 9 =
9. 9.6 × 9 =
10. 10.221 × 9 =
11. 11.106 × 999 =
12. 12.152 × 9 =
13. 13.1516 × 99 =
14. 14.628 × 999 =
15. 15.7 × 9 =
16. 16.2 × 9 =
17. 17.2343 × 99 =
18. 18.946 × 999 =
19. 19.122 × 999 =
20. 20.8 × 9 =
21. 21.115 × 999 =
22. 22.341 × 999 =
23. 23.37 × 99 =
24. 24.881 × 999 =
25. 25.3 × 9 =
26. 26.37 × 99 =
27. 27.4 × 9 =
28. 28.89 × 99 =
29. 29.366 × 999 =
30. 30.16 × 99 =
31. 31.1371 × 99 =
32. 32.53 × 99 =
33. 33.9637 × 999 =
34. 34.1734 × 99 =
35. 35.68 × 99 =
36. 36.25 × 99 =
37. 37.53 × 999 =
38. 38.6 × 9 =
39. 39.235 × 999 =
40. 40.42 × 99 =

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