Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 168 · 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. 1.114 × 99 =
2. 2.201 × 999 =
3. 3.464 × 999 =
4. 4.73 × 99 =
5. 5.25388 × 999 =
6. 6.91 × 99 =
7. 7.26 × 99 =
8. 8.5 × 9 =
9. 9.855 × 99 =
10. 10.52 × 9 =
11. 11.911 × 999 =
12. 12.61 × 99 =
13. 13.112 × 999 =
14. 14.88 × 99 =
15. 15.7 × 9 =
16. 16.18 × 99 =
17. 17.8 × 9 =
18. 18.9 × 99 =
19. 19.35 × 99 =
20. 20.236 × 999 =
21. 21.7 × 9 =
22. 22.2 × 9 =
23. 23.177 × 9 =
24. 24.84 × 99 =
25. 25.141 × 99 =
26. 26.2 × 9 =
27. 27.626 × 999 =
28. 28.6 × 9 =
29. 29.234 × 9 =
30. 30.75 × 99 =
31. 31.37 × 999 =
32. 32.2265 × 99 =
33. 33.847 × 99 =
34. 34.6 × 9 =
35. 35.215 × 999 =
36. 36.24 × 99 =
37. 37.39 × 99 =
38. 38.8 × 99 =
39. 39.24 × 9 =
40. 40.356 × 999 =

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