Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 452 · 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. 1.11 × 99 =
2. 2.8212 × 999 =
3. 3.39 × 99 =
4. 4.8 × 9 =
5. 5.55 × 99 =
6. 6.85 × 99 =
7. 7.847 × 999 =
8. 8.745 × 999 =
9. 9.162 × 9 =
10. 10.7 × 9 =
11. 11.674 × 999 =
12. 12.196 × 9 =
13. 13.949 × 999 =
14. 14.8 × 9 =
15. 15.58 × 99 =
16. 16.247 × 9 =
17. 17.21 × 99 =
18. 18.5692 × 999 =
19. 19.8 × 99 =
20. 20.16 × 99 =
21. 21.59 × 99 =
22. 22.7 × 9 =
23. 23.6463 × 999 =
24. 24.337 × 999 =
25. 25.29525 × 999 =
26. 26.6 × 9 =
27. 27.20743 × 999 =
28. 28.3 × 999 =
29. 29.4 × 9 =
30. 30.199 × 9 =
31. 31.82 × 99 =
32. 32.6 × 9 =
33. 33.46 × 99 =
34. 34.31 × 99 =
35. 35.3 × 9 =
36. 36.5 × 9 =
37. 37.2481 × 99 =
38. 38.1655 × 99 =
39. 39.53 × 99 =
40. 40.2 × 9 =

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