Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 546 · 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. 1.6 × 9 =
2. 2.4 × 9 =
3. 3.5 × 9 =
4. 4.89 × 99 =
5. 5.196 × 999 =
6. 6.587 × 999 =
7. 7.8 × 9 =
8. 8.2 × 9 =
9. 9.2292 × 99 =
10. 10.86 × 99 =
11. 11.972 × 999 =
12. 12.998 × 999 =
13. 13.78 × 99 =
14. 14.515 × 999 =
15. 15.25 × 99 =
16. 16.26 × 99 =
17. 17.2 × 9 =
18. 18.31 × 9 =
19. 19.66 × 99 =
20. 20.47 × 99 =
21. 21.6 × 9 =
22. 22.884 × 99 =
23. 23.459 × 99 =
24. 24.224 × 999 =
25. 25.191 × 9 =
26. 26.96 × 99 =
27. 27.5 × 99 =
28. 28.37 × 99 =
29. 29.77 × 99 =
30. 30.221 × 9 =
31. 31.631 × 999 =
32. 32.4 × 9 =
33. 33.49 × 99 =
34. 34.1505 × 999 =
35. 35.4 × 9 =
36. 36.78 × 99 =
37. 37.7 × 9 =
38. 38.23008 × 999 =
39. 39.26 × 9 =
40. 40.25 × 99 =

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