Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 596 · 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. 1.221 × 999 =
2. 2.455 × 999 =
3. 3.3 × 9 =
4. 4.51 × 99 =
5. 5.8 × 9 =
6. 6.261 × 9 =
7. 7.8 × 9 =
8. 8.6 × 9 =
9. 9.7 × 9 =
10. 10.3 × 9 =
11. 11.81 × 99 =
12. 12.55 × 99 =
13. 13.2 × 9 =
14. 14.936 × 99 =
15. 15.393 × 999 =
16. 16.41 × 99 =
17. 17.98 × 99 =
18. 18.33 × 99 =
19. 19.45 × 9 =
20. 20.7 × 9 =
21. 21.2 × 9 =
22. 22.2 × 9 =
23. 23.47 × 99 =
24. 24.73 × 99 =
25. 25.61 × 99 =
26. 26.9 × 99 =
27. 27.3 × 9 =
28. 28.81 × 99 =
29. 29.95 × 99 =
30. 30.84 × 999 =
31. 31.67 × 99 =
32. 32.17 × 99 =
33. 33.219 × 9 =
34. 34.74 × 99 =
35. 35.15 × 999 =
36. 36.83 × 99 =
37. 37.7 × 9 =
38. 38.6 × 99 =
39. 39.799 × 999 =
40. 40.4 × 9 =

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