Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 870 · 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. 1.118 × 9 =
2. 2.15 × 9 =
3. 3.208 × 999 =
4. 4.5532 × 999 =
5. 5.425 × 999 =
6. 6.266 × 9 =
7. 7.187 × 9 =
8. 8.1426 × 99 =
9. 9.96 × 99 =
10. 10.6 × 9 =
11. 11.2 × 9 =
12. 12.321 × 99 =
13. 13.189 × 9 =
14. 14.6 × 9 =
15. 15.5051 × 999 =
16. 16.6 × 9 =
17. 17.2 × 9 =
18. 18.4 × 9 =
19. 19.21 × 99 =
20. 20.101 × 9 =
21. 21.256 × 9 =
22. 22.404 × 999 =
23. 23.172 × 9 =
24. 24.2968 × 99 =
25. 25.38 × 99 =
26. 26.202 × 9 =
27. 27.557 × 999 =
28. 28.44 × 999 =
29. 29.43 × 99 =
30. 30.469 × 999 =
31. 31.6 × 9 =
32. 32.6 × 9 =
33. 33.6 × 9 =
34. 34.28909 × 999 =
35. 35.46 × 99 =
36. 36.432 × 999 =
37. 37.13814 × 999 =
38. 38.5 × 9 =
39. 39.2 × 9 =
40. 40.155 × 999 =

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