Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 281 · 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. 1.41 × 99 =
2. 2.505 × 99 =
3. 3.3 × 9 =
4. 4.691 × 999 =
5. 5.741 × 999 =
6. 6.17537 × 999 =
7. 7.441 × 999 =
8. 8.7 × 9 =
9. 9.2 × 9 =
10. 10.41 × 99 =
11. 11.71 × 99 =
12. 12.111 × 99 =
13. 13.51 × 99 =
14. 14.5 × 9 =
15. 15.21 × 99 =
16. 16.29 × 99 =
17. 17.1036 × 99 =
18. 18.137 × 999 =
19. 19.48 × 99 =
20. 20.38 × 9 =
21. 21.8 × 9 =
22. 22.5536 × 999 =
23. 23.84 × 99 =
24. 24.61 × 99 =
25. 25.8 × 9 =
26. 26.2 × 9 =
27. 27.261 × 99 =
28. 28.96 × 99 =
29. 29.207 × 9 =
30. 30.1283 × 99 =
31. 31.91 × 99 =
32. 32.691 × 999 =
33. 33.4 × 9 =
34. 34.9775 × 999 =
35. 35.57 × 99 =
36. 36.2067 × 99 =
37. 37.96 × 99 =
38. 38.521 × 999 =
39. 39.25 × 99 =
40. 40.49 × 99 =

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