Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 699 · 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. 1.198 × 999 =
2. 2.785 × 999 =
3. 3.91 × 99 =
4. 4.931 × 999 =
5. 5.747 × 999 =
6. 6.5 × 9 =
7. 7.68 × 99 =
8. 8.441 × 99 =
9. 9.11 × 99 =
10. 10.4 × 9 =
11. 11.58 × 999 =
12. 12.98 × 99 =
13. 13.83 × 9 =
14. 14.651 × 999 =
15. 15.97 × 99 =
16. 16.744 × 999 =
17. 17.17 × 99 =
18. 18.2 × 9 =
19. 19.2 × 9 =
20. 20.7 × 99 =
21. 21.24 × 99 =
22. 22.218 × 999 =
23. 23.13547 × 999 =
24. 24.4 × 9 =
25. 25.1202 × 99 =
26. 26.204 × 999 =
27. 27.6 × 9 =
28. 28.86 × 99 =
29. 29.2 × 9 =
30. 30.184 × 999 =
31. 31.871 × 999 =
32. 32.511 × 999 =
33. 33.668 × 999 =
34. 34.455 × 999 =
35. 35.8 × 99 =
36. 36.5 × 99 =
37. 37.233 × 999 =
38. 38.33 × 9 =
39. 39.176 × 9 =
40. 40.6 × 9 =

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