Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 232 · 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. 1.201 × 9 =
2. 2.1423 × 99 =
3. 3.41 × 99 =
4. 4.78 × 99 =
5. 5.18398 × 999 =
6. 6.261 × 99 =
7. 7.475 × 999 =
8. 8.2738 × 99 =
9. 9.5 × 9 =
10. 10.26 × 99 =
11. 11.79 × 99 =
12. 12.1334 × 99 =
13. 13.4 × 9 =
14. 14.836 × 99 =
15. 15.302 × 99 =
16. 16.2 × 9 =
17. 17.937 × 99 =
18. 18.995 × 999 =
19. 19.5 × 9 =
20. 20.33 × 99 =
21. 21.41 × 9 =
22. 22.395 × 999 =
23. 23.9659 × 999 =
24. 24.664 × 999 =
25. 25.31 × 99 =
26. 26.7 × 9 =
27. 27.188 × 999 =
28. 28.171 × 999 =
29. 29.6 × 9 =
30. 30.7 × 9 =
31. 31.2 × 9 =
32. 32.6 × 99 =
33. 33.6 × 9 =
34. 34.23 × 99 =
35. 35.2176 × 99 =
36. 36.321 × 999 =
37. 37.29183 × 999 =
38. 38.697 × 999 =
39. 39.8 × 9 =
40. 40.611 × 999 =

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