Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 500 · 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 × 99 =
2. 2.63 × 99 =
3. 3.2341 × 99 =
4. 4.977 × 999 =
5. 5.36 × 9 =
6. 6.3 × 99 =
7. 7.193 × 9 =
8. 8.5 × 9 =
9. 9.54 × 99 =
10. 10.16 × 999 =
11. 11.7 × 9 =
12. 12.264 × 9 =
13. 13.6 × 9 =
14. 14.33 × 99 =
15. 15.29 × 99 =
16. 16.611 × 99 =
17. 17.66 × 99 =
18. 18.5 × 9 =
19. 19.201 × 99 =
20. 20.3 × 99 =
21. 21.132 × 9 =
22. 22.1601 × 99 =
23. 23.1436 × 99 =
24. 24.2 × 9 =
25. 25.4 × 9 =
26. 26.6 × 99 =
27. 27.15 × 99 =
28. 28.3 × 9 =
29. 29.8 × 99 =
30. 30.3 × 99 =
31. 31.251 × 9 =
32. 32.13151 × 999 =
33. 33.76 × 99 =
34. 34.7 × 9 =
35. 35.34 × 99 =
36. 36.61 × 999 =
37. 37.2 × 9 =
38. 38.129 × 9 =
39. 39.5 × 9 =
40. 40.7 × 9 =

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