Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 844 · 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. 2.268 × 9 =
3. 3.55 × 99 =
4. 4.13 × 9 =
5. 5.18 × 99 =
6. 6.2 × 99 =
7. 7.542 × 999 =
8. 8.635 × 99 =
9. 9.67 × 999 =
10. 10.7242 × 999 =
11. 11.8 × 9 =
12. 12.278 × 999 =
13. 13.6 × 99 =
14. 14.214 × 9 =
15. 15.201 × 999 =
16. 16.2 × 9 =
17. 17.37 × 99 =
18. 18.18 × 9 =
19. 19.724 × 99 =
20. 20.1531 × 99 =
21. 21.46 × 99 =
22. 22.47 × 99 =
23. 23.4 × 9 =
24. 24.51 × 999 =
25. 25.2806 × 99 =
26. 26.4 × 9 =
27. 27.2096 × 99 =
28. 28.56 × 99 =
29. 29.43 × 999 =
30. 30.8 × 9 =
31. 31.81 × 9 =
32. 32.2695 × 99 =
33. 33.6 × 9 =
34. 34.7 × 9 =
35. 35.3 × 9 =
36. 36.237 × 9 =
37. 37.17 × 99 =
38. 38.1971 × 999 =
39. 39.54 × 99 =
40. 40.2466 × 99 =

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