Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 658 · 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. 1.46 × 99 =
2. 2.9037 × 999 =
3. 3.151 × 9 =
4. 4.61 × 99 =
5. 5.259 × 999 =
6. 6.74 × 999 =
7. 7.2 × 99 =
8. 8.5 × 99 =
9. 9.172 × 99 =
10. 10.225 × 9 =
11. 11.2 × 9 =
12. 12.47 × 99 =
13. 13.29484 × 999 =
14. 14.6 × 9 =
15. 15.6 × 9 =
16. 16.909 × 99 =
17. 17.377 × 999 =
18. 18.34 × 99 =
19. 19.47 × 99 =
20. 20.2 × 9 =
21. 21.52 × 999 =
22. 22.315 × 999 =
23. 23.2339 × 99 =
24. 24.181 × 9 =
25. 25.197 × 999 =
26. 26.2 × 9 =
27. 27.186 × 999 =
28. 28.1154 × 99 =
29. 29.11 × 9 =
30. 30.4 × 9 =
31. 31.3183 × 999 =
32. 32.1384 × 99 =
33. 33.65 × 9 =
34. 34.421 × 999 =
35. 35.7 × 9 =
36. 36.227 × 999 =
37. 37.33 × 99 =
38. 38.27651 × 999 =
39. 39.68 × 99 =
40. 40.5 × 9 =

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