Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 797 · 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. 1.4 × 9 =
2. 2.2914 × 99 =
3. 3.29 × 99 =
4. 4.42 × 99 =
5. 5.3 × 9 =
6. 6.6 × 9 =
7. 7.2268 × 99 =
8. 8.63 × 9 =
9. 9.6 × 9 =
10. 10.155 × 999 =
11. 11.4 × 9 =
12. 12.201 × 9 =
13. 13.171 × 999 =
14. 14.2131 × 99 =
15. 15.65 × 99 =
16. 16.6 × 9 =
17. 17.42 × 99 =
18. 18.218 × 9 =
19. 19.2 × 9 =
20. 20.24626 × 999 =
21. 21.4 × 9 =
22. 22.6 × 9 =
23. 23.2957 × 999 =
24. 24.25 × 99 =
25. 25.637 × 999 =
26. 26.719 × 999 =
27. 27.4 × 9 =
28. 28.8 × 9 =
29. 29.33 × 99 =
30. 30.5 × 9 =
31. 31.3 × 9 =
32. 32.335 × 999 =
33. 33.5 × 9 =
34. 34.141 × 999 =
35. 35.44 × 99 =
36. 36.343 × 999 =
37. 37.6 × 9 =
38. 38.4 × 9 =
39. 39.171 × 9 =
40. 40.64 × 99 =

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