Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 897 · 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. 1.5 × 9 =
2. 2.2486 × 99 =
3. 3.8 × 9 =
4. 4.334 × 999 =
5. 5.2061 × 99 =
6. 6.3 × 9 =
7. 7.259 × 9 =
8. 8.3 × 9 =
9. 9.666 × 999 =
10. 10.6 × 9 =
11. 11.71 × 99 =
12. 12.661 × 999 =
13. 13.3 × 9 =
14. 14.532 × 999 =
15. 15.82 × 9 =
16. 16.32 × 9 =
17. 17.3 × 9 =
18. 18.4 × 9 =
19. 19.439 × 999 =
20. 20.21441 × 999 =
21. 21.21 × 9 =
22. 22.1814 × 99 =
23. 23.73 × 99 =
24. 24.20268 × 999 =
25. 25.89 × 99 =
26. 26.25 × 9 =
27. 27.138 × 9 =
28. 28.8 × 9 =
29. 29.262 × 999 =
30. 30.1354 × 99 =
31. 31.602 × 999 =
32. 32.55 × 9 =
33. 33.78 × 99 =
34. 34.29 × 9 =
35. 35.98 × 99 =
36. 36.3 × 9 =
37. 37.751 × 999 =
38. 38.527 × 999 =
39. 39.85 × 99 =
40. 40.34 × 99 =

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