Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 903 · 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. 1.71 × 999 =
2. 2.8 × 9 =
3. 3.4 × 9 =
4. 4.93 × 99 =
5. 5.273 × 999 =
6. 6.12719 × 999 =
7. 7.14 × 99 =
8. 8.35 × 99 =
9. 9.55 × 99 =
10. 10.606 × 999 =
11. 11.954 × 999 =
12. 12.81 × 99 =
13. 13.1728 × 99 =
14. 14.2 × 9 =
15. 15.3 × 99 =
16. 16.87 × 99 =
17. 17.196 × 999 =
18. 18.645 × 999 =
19. 19.97 × 99 =
20. 20.1091 × 99 =
21. 21.77 × 9 =
22. 22.99 × 999 =
23. 23.3 × 9 =
24. 24.3 × 9 =
25. 25.5 × 9 =
26. 26.252 × 9 =
27. 27.604 × 999 =
28. 28.18 × 99 =
29. 29.2675 × 99 =
30. 30.2461 × 99 =
31. 31.1141 × 999 =
32. 32.7 × 9 =
33. 33.1454 × 99 =
34. 34.21 × 99 =
35. 35.13071 × 999 =
36. 36.683 × 999 =
37. 37.237 × 999 =
38. 38.2617 × 99 =
39. 39.45 × 999 =
40. 40.97 × 9 =

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