Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 574 · 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. 2.5 × 9 =
3. 3.798 × 999 =
4. 4.1616 × 99 =
5. 5.21111 × 999 =
6. 6.7 × 9 =
7. 7.403 × 999 =
8. 8.10584 × 999 =
9. 9.19 × 9 =
10. 10.498 × 999 =
11. 11.67 × 99 =
12. 12.6 × 9 =
13. 13.896 × 999 =
14. 14.52 × 99 =
15. 15.837 × 999 =
16. 16.63 × 99 =
17. 17.6 × 9 =
18. 18.93 × 99 =
19. 19.2 × 9 =
20. 20.269 × 9 =
21. 21.26854 × 999 =
22. 22.21 × 9 =
23. 23.43 × 99 =
24. 24.2 × 9 =
25. 25.75 × 99 =
26. 26.72 × 99 =
27. 27.7 × 9 =
28. 28.43 × 99 =
29. 29.524 × 999 =
30. 30.11 × 99 =
31. 31.48 × 99 =
32. 32.2157 × 99 =
33. 33.10211 × 999 =
34. 34.41 × 99 =
35. 35.10032 × 999 =
36. 36.18 × 99 =
37. 37.59 × 99 =
38. 38.4 × 9 =
39. 39.271 × 999 =
40. 40.976 × 999 =

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