Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 229 · 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. 1.3 × 9 =
2. 2.8 × 9 =
3. 3.13 × 99 =
4. 4.246 × 999 =
5. 5.12516 × 999 =
6. 6.31 × 999 =
7. 7.322 × 999 =
8. 8.4 × 9 =
9. 9.6 × 9 =
10. 10.7 × 9 =
11. 11.371 × 999 =
12. 12.19 × 99 =
13. 13.683 × 999 =
14. 14.3 × 9 =
15. 15.5 × 99 =
16. 16.1586 × 99 =
17. 17.5 × 9 =
18. 18.2 × 9 =
19. 19.885 × 99 =
20. 20.18492 × 999 =
21. 21.2 × 9 =
22. 22.237 × 9 =
23. 23.381 × 999 =
24. 24.2 × 9 =
25. 25.2971 × 99 =
26. 26.964 × 999 =
27. 27.156 × 999 =
28. 28.2 × 9 =
29. 29.68 × 99 =
30. 30.408 × 999 =
31. 31.5 × 9 =
32. 32.727 × 999 =
33. 33.137 × 999 =
34. 34.495 × 99 =
35. 35.3 × 9 =
36. 36.2 × 9 =
37. 37.25872 × 999 =
38. 38.2943 × 99 =
39. 39.69 × 99 =
40. 40.231 × 9 =

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