Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 404 · 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. 1.3 × 9 =
2. 2.3 × 9 =
3. 3.11 × 99 =
4. 4.144 × 9 =
5. 5.3 × 9 =
6. 6.26 × 99 =
7. 7.5 × 9 =
8. 8.88 × 99 =
9. 9.131 × 99 =
10. 10.506 × 99 =
11. 11.2 × 9 =
12. 12.2 × 99 =
13. 13.221 × 9 =
14. 14.959 × 999 =
15. 15.3 × 9 =
16. 16.611 × 99 =
17. 17.1129 × 99 =
18. 18.2 × 9 =
19. 19.7 × 9 =
20. 20.6 × 9 =
21. 21.47 × 9 =
22. 22.55 × 9 =
23. 23.32 × 9 =
24. 24.732 × 999 =
25. 25.81 × 99 =
26. 26.354 × 999 =
27. 27.85 × 999 =
28. 28.392 × 99 =
29. 29.135 × 9 =
30. 30.4 × 9 =
31. 31.171 × 999 =
32. 32.728 × 99 =
33. 33.2642 × 99 =
34. 34.241 × 9 =
35. 35.86 × 99 =
36. 36.8 × 9 =
37. 37.1477 × 999 =
38. 38.985 × 999 =
39. 39.1599 × 99 =
40. 40.1389 × 99 =

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