Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 316 · 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. 1.1641 × 99 =
2. 2.1259 × 99 =
3. 3.81 × 99 =
4. 4.5989 × 999 =
5. 5.27 × 99 =
6. 6.4 × 99 =
7. 7.8 × 9 =
8. 8.1749 × 99 =
9. 9.741 × 999 =
10. 10.42 × 99 =
11. 11.57 × 9 =
12. 12.197 × 9 =
13. 13.2313 × 99 =
14. 14.387 × 999 =
15. 15.1641 × 99 =
16. 16.2 × 9 =
17. 17.46 × 99 =
18. 18.2 × 99 =
19. 19.563 × 999 =
20. 20.1996 × 99 =
21. 21.178 × 999 =
22. 22.46 × 99 =
23. 23.743 × 99 =
24. 24.6 × 9 =
25. 25.818 × 999 =
26. 26.74 × 99 =
27. 27.14 × 99 =
28. 28.245 × 9 =
29. 29.902 × 999 =
30. 30.78 × 9 =
31. 31.43 × 99 =
32. 32.129 × 9 =
33. 33.24 × 99 =
34. 34.111 × 999 =
35. 35.91 × 99 =
36. 36.1261 × 99 =
37. 37.58 × 99 =
38. 38.72 × 99 =
39. 39.4 × 9 =
40. 40.195 × 999 =

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