Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 423 · 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. 1.15072 × 999 =
2. 2.115 × 999 =
3. 3.907 × 999 =
4. 4.147 × 999 =
5. 5.1242 × 99 =
6. 6.1312 × 99 =
7. 7.5 × 9 =
8. 8.138 × 9 =
9. 9.46 × 99 =
10. 10.154 × 999 =
11. 11.167 × 9 =
12. 12.17752 × 999 =
13. 13.804 × 999 =
14. 14.311 × 999 =
15. 15.4 × 9 =
16. 16.481 × 999 =
17. 17.7 × 9 =
18. 18.447 × 999 =
19. 19.78 × 99 =
20. 20.68 × 99 =
21. 21.7 × 9 =
22. 22.775 × 999 =
23. 23.706 × 999 =
24. 24.974 × 999 =
25. 25.13 × 99 =
26. 26.696 × 999 =
27. 27.21994 × 999 =
28. 28.34 × 99 =
29. 29.8215 × 999 =
30. 30.78 × 99 =
31. 31.6 × 9 =
32. 32.3 × 9 =
33. 33.674 × 999 =
34. 34.5 × 9 =
35. 35.3 × 99 =
36. 36.34 × 999 =
37. 37.5748 × 999 =
38. 38.162 × 9 =
39. 39.22 × 99 =
40. 40.3 × 9 =

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