Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 159 · 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. 1.145 × 9 =
2. 2.61 × 99 =
3. 3.351 × 999 =
4. 4.26192 × 999 =
5. 5.18 × 99 =
6. 6.6 × 9 =
7. 7.1684 × 99 =
8. 8.69 × 99 =
9. 9.152 × 9 =
10. 10.47 × 99 =
11. 11.5 × 9 =
12. 12.9 × 99 =
13. 13.27459 × 999 =
14. 14.79 × 99 =
15. 15.241 × 9 =
16. 16.8 × 9 =
17. 17.926 × 99 =
18. 18.341 × 999 =
19. 19.841 × 999 =
20. 20.6 × 9 =
21. 21.52 × 9 =
22. 22.81 × 99 =
23. 23.51 × 99 =
24. 24.383 × 99 =
25. 25.2 × 9 =
26. 26.8 × 9 =
27. 27.1463 × 99 =
28. 28.4 × 9 =
29. 29.25228 × 999 =
30. 30.6 × 9 =
31. 31.4 × 9 =
32. 32.251 × 9 =
33. 33.43 × 99 =
34. 34.92 × 99 =
35. 35.52 × 99 =
36. 36.6 × 99 =
37. 37.94 × 99 =
38. 38.11 × 99 =
39. 39.233 × 9 =
40. 40.735 × 999 =

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