Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 880 · 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. 1.36 × 9 =
2. 2.25 × 99 =
3. 3.5 × 99 =
4. 4.79 × 99 =
5. 5.2001 × 99 =
6. 6.222 × 9 =
7. 7.57 × 9 =
8. 8.2 × 99 =
9. 9.57 × 9 =
10. 10.252 × 9 =
11. 11.3 × 9 =
12. 12.95 × 99 =
13. 13.18 × 99 =
14. 14.391 × 999 =
15. 15.399 × 999 =
16. 16.177 × 999 =
17. 17.446 × 999 =
18. 18.1321 × 99 =
19. 19.127 × 999 =
20. 20.7 × 9 =
21. 21.13684 × 999 =
22. 22.68 × 99 =
23. 23.6 × 9 =
24. 24.657 × 99 =
25. 25.2 × 9 =
26. 26.89 × 99 =
27. 27.78 × 9 =
28. 28.6 × 9 =
29. 29.249 × 999 =
30. 30.13801 × 999 =
31. 31.2 × 9 =
32. 32.4631 × 999 =
33. 33.69 × 99 =
34. 34.603 × 999 =
35. 35.34 × 9 =
36. 36.11 × 99 =
37. 37.761 × 999 =
38. 38.3 × 9 =
39. 39.102 × 999 =
40. 40.24 × 99 =

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