Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 408 · 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. 2.762 × 999 =
3. 3.3 × 9 =
4. 4.91 × 99 =
5. 5.7 × 9 =
6. 6.6 × 9 =
7. 7.5596 × 999 =
8. 8.5 × 9 =
9. 9.8701 × 999 =
10. 10.1322 × 99 =
11. 11.892 × 99 =
12. 12.114 × 999 =
13. 13.5 × 9 =
14. 14.74 × 99 =
15. 15.97 × 99 =
16. 16.6 × 9 =
17. 17.7 × 9 =
18. 18.141 × 999 =
19. 19.421 × 999 =
20. 20.561 × 999 =
21. 21.43 × 99 =
22. 22.93 × 99 =
23. 23.14381 × 999 =
24. 24.3 × 9 =
25. 25.133 × 999 =
26. 26.3 × 999 =
27. 27.28 × 99 =
28. 28.5 × 9 =
29. 29.14 × 99 =
30. 30.4 × 9 =
31. 31.2 × 9 =
32. 32.793 × 999 =
33. 33.7 × 9 =
34. 34.36 × 99 =
35. 35.142 × 9 =
36. 36.53 × 99 =
37. 37.726 × 999 =
38. 38.8 × 9 =
39. 39.71 × 999 =
40. 40.69 × 99 =

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