Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 177 · 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. 1.2023 × 99 =
2. 2.157 × 999 =
3. 3.2 × 9 =
4. 4.39 × 99 =
5. 5.7 × 9 =
6. 6.26 × 9 =
7. 7.77 × 99 =
8. 8.6 × 9 =
9. 9.958 × 999 =
10. 10.91 × 99 =
11. 11.732 × 99 =
12. 12.1022 × 99 =
13. 13.22 × 99 =
14. 14.81 × 99 =
15. 15.7 × 999 =
16. 16.2 × 9 =
17. 17.238 × 9 =
18. 18.49 × 9 =
19. 19.88 × 99 =
20. 20.59 × 99 =
21. 21.41 × 99 =
22. 22.2537 × 99 =
23. 23.4 × 9 =
24. 24.514 × 999 =
25. 25.103 × 9 =
26. 26.182 × 9 =
27. 27.45 × 9 =
28. 28.7 × 9 =
29. 29.908 × 999 =
30. 30.122 × 99 =
31. 31.581 × 999 =
32. 32.2132 × 99 =
33. 33.48 × 99 =
34. 34.2677 × 99 =
35. 35.62 × 9 =
36. 36.3 × 9 =
37. 37.591 × 999 =
38. 38.55 × 99 =
39. 39.8 × 9 =
40. 40.19 × 99 =

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