Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 209 · 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. 1.8591 × 999 =
2. 2.3 × 9 =
3. 3.34 × 99 =
4. 4.24811 × 999 =
5. 5.128 × 9 =
6. 6.28013 × 999 =
7. 7.367 × 999 =
8. 8.3 × 9 =
9. 9.5 × 9 =
10. 10.562 × 999 =
11. 11.53 × 99 =
12. 12.4 × 9 =
13. 13.5 × 9 =
14. 14.998 × 999 =
15. 15.69 × 99 =
16. 16.73 × 9 =
17. 17.6 × 9 =
18. 18.155 × 999 =
19. 19.3 × 9 =
20. 20.27 × 99 =
21. 21.7 × 9 =
22. 22.264 × 9 =
23. 23.82 × 99 =
24. 24.1337 × 999 =
25. 25.8 × 9 =
26. 26.7 × 9 =
27. 27.20163 × 999 =
28. 28.807 × 99 =
29. 29.776 × 999 =
30. 30.28892 × 999 =
31. 31.71 × 99 =
32. 32.12 × 99 =
33. 33.2182 × 99 =
34. 34.224 × 999 =
35. 35.854 × 999 =
36. 36.981 × 999 =
37. 37.92 × 99 =
38. 38.77 × 999 =
39. 39.16 × 99 =
40. 40.534 × 999 =

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