Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 221 · 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. 1.35 × 9 =
2. 2.2 × 9 =
3. 3.81 × 9 =
4. 4.17 × 99 =
5. 5.86 × 99 =
6. 6.5 × 9 =
7. 7.88 × 99 =
8. 8.2544 × 99 =
9. 9.8 × 9 =
10. 10.2 × 9 =
11. 11.22 × 99 =
12. 12.42 × 99 =
13. 13.731 × 999 =
14. 14.4 × 9 =
15. 15.2073 × 99 =
16. 16.4 × 9 =
17. 17.223 × 999 =
18. 18.283 × 999 =
19. 19.32 × 99 =
20. 20.95 × 99 =
21. 21.62 × 9 =
22. 22.29 × 99 =
23. 23.962 × 999 =
24. 24.1119 × 99 =
25. 25.2 × 9 =
26. 26.573 × 999 =
27. 27.205 × 9 =
28. 28.21749 × 999 =
29. 29.51 × 99 =
30. 30.77 × 99 =
31. 31.17 × 99 =
32. 32.86 × 99 =
33. 33.2231 × 99 =
34. 34.4 × 9 =
35. 35.57 × 999 =
36. 36.27 × 99 =
37. 37.2 × 99 =
38. 38.454 × 999 =
39. 39.8 × 9 =
40. 40.266 × 9 =

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