Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 148 · 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. 1.894 × 999 =
2. 2.617 × 99 =
3. 3.62 × 99 =
4. 4.92 × 99 =
5. 5.28706 × 999 =
6. 6.263 × 999 =
7. 7.71 × 99 =
8. 8.225 × 99 =
9. 9.1895 × 99 =
10. 10.21 × 99 =
11. 11.487 × 999 =
12. 12.2644 × 99 =
13. 13.7 × 9 =
14. 14.61 × 99 =
15. 15.73 × 99 =
16. 16.51 × 99 =
17. 17.57 × 99 =
18. 18.46 × 99 =
19. 19.916 × 99 =
20. 20.5 × 9 =
21. 21.112 × 9 =
22. 22.8 × 9 =
23. 23.20192 × 999 =
24. 24.88 × 99 =
25. 25.26 × 999 =
26. 26.32 × 99 =
27. 27.23787 × 999 =
28. 28.22 × 99 =
29. 29.21321 × 999 =
30. 30.58 × 99 =
31. 31.669 × 99 =
32. 32.7 × 99 =
33. 33.64 × 999 =
34. 34.6 × 9 =
35. 35.164 × 999 =
36. 36.123 × 9 =
37. 37.25 × 99 =
38. 38.5 × 9 =
39. 39.121 × 999 =
40. 40.9 × 99 =

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