Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 784 · 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. 1.4634 × 999 =
2. 2.6 × 99 =
3. 3.51 × 99 =
4. 4.43 × 99 =
5. 5.4 × 99 =
6. 6.4 × 99 =
7. 7.1593 × 99 =
8. 8.6 × 9 =
9. 9.1848 × 99 =
10. 10.4 × 9 =
11. 11.7 × 9 =
12. 12.2 × 9 =
13. 13.89 × 99 =
14. 14.72 × 99 =
15. 15.518 × 999 =
16. 16.63 × 99 =
17. 17.8 × 99 =
18. 18.45 × 99 =
19. 19.971 × 999 =
20. 20.359 × 999 =
21. 21.9 × 99 =
22. 22.351 × 999 =
23. 23.7 × 99 =
24. 24.4 × 9 =
25. 25.22317 × 999 =
26. 26.2395 × 99 =
27. 27.9 × 99 =
28. 28.1093 × 99 =
29. 29.212 × 999 =
30. 30.964 × 99 =
31. 31.3 × 9 =
32. 32.646 × 999 =
33. 33.4 × 9 =
34. 34.2289 × 99 =
35. 35.2555 × 99 =
36. 36.37 × 99 =
37. 37.46 × 99 =
38. 38.11 × 99 =
39. 39.26524 × 999 =
40. 40.39 × 99 =

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