Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 413 · 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. 1.4 × 9 =
2. 2.95 × 999 =
3. 3.81 × 999 =
4. 4.91 × 99 =
5. 5.2 × 9 =
6. 6.2 × 9 =
7. 7.1023 × 99 =
8. 8.97 × 99 =
9. 9.177 × 9 =
10. 10.12 × 9 =
11. 11.2 × 99 =
12. 12.1599 × 99 =
13. 13.628 × 99 =
14. 14.2 × 9 =
15. 15.2269 × 99 =
16. 16.51 × 99 =
17. 17.2463 × 99 =
18. 18.886 × 999 =
19. 19.125 × 999 =
20. 20.873 × 999 =
21. 21.29821 × 999 =
22. 22.564 × 999 =
23. 23.206 × 999 =
24. 24.21 × 9 =
25. 25.159 × 9 =
26. 26.919 × 999 =
27. 27.8 × 9 =
28. 28.15 × 99 =
29. 29.867 × 999 =
30. 30.144 × 999 =
31. 31.91 × 99 =
32. 32.3 × 9 =
33. 33.3 × 9 =
34. 34.3 × 9 =
35. 35.3 × 9 =
36. 36.65 × 99 =
37. 37.32 × 99 =
38. 38.17 × 99 =
39. 39.154 × 999 =
40. 40.5 × 9 =

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