Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 659 · 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. 1.4552 × 999 =
2. 2.6 × 99 =
3. 3.5 × 9 =
4. 4.22 × 99 =
5. 5.2 × 99 =
6. 6.205 × 9 =
7. 7.104 × 999 =
8. 8.5 × 9 =
9. 9.292 × 999 =
10. 10.36 × 99 =
11. 11.71 × 99 =
12. 12.8 × 99 =
13. 13.2 × 9 =
14. 14.4 × 9 =
15. 15.7 × 9 =
16. 16.6 × 9 =
17. 17.78 × 999 =
18. 18.191 × 9 =
19. 19.77 × 99 =
20. 20.14 × 999 =
21. 21.174 × 999 =
22. 22.375 × 999 =
23. 23.2293 × 99 =
24. 24.6 × 9 =
25. 25.67 × 9 =
26. 26.16 × 99 =
27. 27.592 × 99 =
28. 28.7 × 9 =
29. 29.151 × 9 =
30. 30.552 × 99 =
31. 31.7 × 9 =
32. 32.85 × 99 =
33. 33.76 × 99 =
34. 34.4 × 9 =
35. 35.983 × 999 =
36. 36.5 × 9 =
37. 37.7 × 9 =
38. 38.198 × 9 =
39. 39.8 × 9 =
40. 40.6 × 9 =

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