Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 931 · 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. 2.1761 × 99 =
3. 3.93 × 99 =
4. 4.708 × 999 =
5. 5.61 × 99 =
6. 6.16 × 99 =
7. 7.21 × 99 =
8. 8.78 × 99 =
9. 9.131 × 999 =
10. 10.4 × 9 =
11. 11.11 × 99 =
12. 12.249 × 9 =
13. 13.25321 × 999 =
14. 14.622 × 999 =
15. 15.6 × 9 =
16. 16.115 × 9 =
17. 17.365 × 999 =
18. 18.206 × 99 =
19. 19.2 × 9 =
20. 20.81 × 99 =
21. 21.845 × 999 =
22. 22.791 × 999 =
23. 23.167 × 9 =
24. 24.161 × 9 =
25. 25.2364 × 99 =
26. 26.801 × 999 =
27. 27.3 × 9 =
28. 28.44 × 99 =
29. 29.29765 × 999 =
30. 30.266 × 9 =
31. 31.91 × 99 =
32. 32.3 × 9 =
33. 33.936 × 999 =
34. 34.732 × 999 =
35. 35.54 × 99 =
36. 36.624 × 999 =
37. 37.34 × 999 =
38. 38.396 × 99 =
39. 39.1652 × 99 =
40. 40.7 × 9 =

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