Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 830 · 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. 1.59 × 99 =
2. 2.75 × 99 =
3. 3.43 × 99 =
4. 4.20921 × 999 =
5. 5.35 × 99 =
6. 6.351 × 999 =
7. 7.253 × 9 =
8. 8.547 × 999 =
9. 9.44 × 99 =
10. 10.52 × 999 =
11. 11.39 × 99 =
12. 12.39 × 999 =
13. 13.4 × 9 =
14. 14.956 × 999 =
15. 15.2 × 9 =
16. 16.5 × 99 =
17. 17.8 × 9 =
18. 18.431 × 999 =
19. 19.439 × 99 =
20. 20.3 × 9 =
21. 21.7 × 9 =
22. 22.497 × 999 =
23. 23.63 × 99 =
24. 24.9 × 99 =
25. 25.188 × 9 =
26. 26.61 × 9 =
27. 27.5 × 9 =
28. 28.29 × 999 =
29. 29.39 × 99 =
30. 30.612 × 999 =
31. 31.777 × 999 =
32. 32.8 × 99 =
33. 33.13 × 999 =
34. 34.357 × 999 =
35. 35.2 × 9 =
36. 36.5 × 9 =
37. 37.343 × 999 =
38. 38.8533 × 999 =
39. 39.78 × 99 =
40. 40.543 × 999 =

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