Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 372 · 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. 1.3 × 9 =
2. 2.2876 × 99 =
3. 3.27 × 999 =
4. 4.504 × 999 =
5. 5.20122 × 999 =
6. 6.8 × 99 =
7. 7.61 × 99 =
8. 8.2431 × 99 =
9. 9.7 × 9 =
10. 10.84 × 99 =
11. 11.204 × 9 =
12. 12.222 × 9 =
13. 13.23 × 999 =
14. 14.202 × 9 =
15. 15.8 × 9 =
16. 16.23633 × 999 =
17. 17.744 × 999 =
18. 18.686 × 999 =
19. 19.7 × 9 =
20. 20.3 × 9 =
21. 21.57 × 99 =
22. 22.427 × 999 =
23. 23.559 × 99 =
24. 24.741 × 999 =
25. 25.546 × 99 =
26. 26.48 × 99 =
27. 27.5 × 9 =
28. 28.454 × 999 =
29. 29.1587 × 99 =
30. 30.204 × 9 =
31. 31.2 × 9 =
32. 32.178 × 999 =
33. 33.7 × 9 =
34. 34.24 × 99 =
35. 35.21 × 9 =
36. 36.58 × 99 =
37. 37.6356 × 999 =
38. 38.33 × 99 =
39. 39.2 × 9 =
40. 40.2418 × 99 =

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