Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 575 · 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. 2.16 × 99 =
3. 3.13075 × 999 =
4. 4.3 × 9 =
5. 5.97 × 99 =
6. 6.2 × 9 =
7. 7.153 × 9 =
8. 8.2 × 9 =
9. 9.91 × 99 =
10. 10.77 × 99 =
11. 11.4 × 9 =
12. 12.142 × 999 =
13. 13.2491 × 999 =
14. 14.4 × 9 =
15. 15.1262 × 99 =
16. 16.195 × 999 =
17. 17.1951 × 99 =
18. 18.54 × 99 =
19. 19.55 × 99 =
20. 20.4 × 9 =
21. 21.3 × 9 =
22. 22.7 × 9 =
23. 23.3 × 9 =
24. 24.45 × 99 =
25. 25.157 × 999 =
26. 26.82 × 99 =
27. 27.298 × 999 =
28. 28.2 × 9 =
29. 29.899 × 999 =
30. 30.841 × 999 =
31. 31.12232 × 999 =
32. 32.4 × 9 =
33. 33.576 × 999 =
34. 34.65 × 999 =
35. 35.194 × 9 =
36. 36.27 × 99 =
37. 37.2 × 9 =
38. 38.72 × 99 =
39. 39.1439 × 99 =
40. 40.767 × 999 =

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