Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 608 · 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. 1.8 × 9 =
2. 2.27 × 99 =
3. 3.85 × 99 =
4. 4.145 × 9 =
5. 5.1459 × 99 =
6. 6.656 × 999 =
7. 7.262 × 9 =
8. 8.937 × 999 =
9. 9.4 × 9 =
10. 10.74 × 99 =
11. 11.614 × 999 =
12. 12.527 × 999 =
13. 13.99 × 999 =
14. 14.31 × 99 =
15. 15.6 × 9 =
16. 16.201 × 999 =
17. 17.419 × 999 =
18. 18.802 × 999 =
19. 19.19 × 99 =
20. 20.7 × 9 =
21. 21.23 × 99 =
22. 22.122 × 9 =
23. 23.26116 × 999 =
24. 24.265 × 9 =
25. 25.296 × 999 =
26. 26.56 × 9 =
27. 27.12017 × 999 =
28. 28.743 × 999 =
29. 29.23105 × 999 =
30. 30.54 × 99 =
31. 31.36 × 9 =
32. 32.2484 × 99 =
33. 33.78 × 99 =
34. 34.4 × 9 =
35. 35.941 × 999 =
36. 36.241 × 999 =
37. 37.4 × 9 =
38. 38.216 × 999 =
39. 39.93 × 99 =
40. 40.32 × 99 =

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