Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 752 · 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. 1.113 × 9 =
2. 2.44 × 999 =
3. 3.25 × 99 =
4. 4.514 × 999 =
5. 5.528 × 999 =
6. 6.4 × 9 =
7. 7.6 × 9 =
8. 8.3 × 9 =
9. 9.93 × 99 =
10. 10.195 × 9 =
11. 11.2117 × 999 =
12. 12.6 × 99 =
13. 13.12 × 99 =
14. 14.131 × 9 =
15. 15.43 × 99 =
16. 16.7 × 9 =
17. 17.3 × 9 =
18. 18.5 × 9 =
19. 19.4 × 99 =
20. 20.72 × 99 =
21. 21.6 × 9 =
22. 22.37 × 99 =
23. 23.72 × 9 =
24. 24.1515 × 999 =
25. 25.2 × 9 =
26. 26.6001 × 999 =
27. 27.8 × 9 =
28. 28.3 × 9 =
29. 29.42 × 99 =
30. 30.24 × 99 =
31. 31.112 × 9 =
32. 32.35 × 99 =
33. 33.7 × 9 =
34. 34.668 × 999 =
35. 35.562 × 999 =
36. 36.449 × 999 =
37. 37.917 × 999 =
38. 38.1305 × 99 =
39. 39.381 × 999 =
40. 40.2529 × 99 =

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