Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 861 · 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. 1.2 × 9 =
2. 2.19976 × 999 =
3. 3.66 × 99 =
4. 4.76 × 9 =
5. 5.86 × 99 =
6. 6.242 × 99 =
7. 7.3 × 9 =
8. 8.111 × 9 =
9. 9.46 × 99 =
10. 10.196 × 999 =
11. 11.5 × 9 =
12. 12.248 × 9 =
13. 13.13515 × 999 =
14. 14.574 × 999 =
15. 15.431 × 999 =
16. 16.153 × 9 =
17. 17.245 × 999 =
18. 18.61 × 99 =
19. 19.118 × 999 =
20. 20.61 × 99 =
21. 21.74 × 99 =
22. 22.77 × 99 =
23. 23.8 × 9 =
24. 24.17 × 999 =
25. 25.154 × 999 =
26. 26.3 × 9 =
27. 27.41 × 99 =
28. 28.83 × 9 =
29. 29.14 × 99 =
30. 30.2705 × 99 =
31. 31.37 × 99 =
32. 32.3 × 9 =
33. 33.511 × 999 =
34. 34.2 × 9 =
35. 35.2 × 99 =
36. 36.6 × 9 =
37. 37.74 × 99 =
38. 38.6 × 9 =
39. 39.34 × 99 =
40. 40.18 × 99 =

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