Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 613 · 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. 1.858 × 999 =
2. 2.27047 × 999 =
3. 3.622 × 999 =
4. 4.2301 × 99 =
5. 5.3 × 99 =
6. 6.357 × 999 =
7. 7.29 × 99 =
8. 8.22 × 99 =
9. 9.208 × 9 =
10. 10.5 × 9 =
11. 11.567 × 999 =
12. 12.2966 × 99 =
13. 13.17 × 99 =
14. 14.6 × 9 =
15. 15.42 × 99 =
16. 16.3 × 9 =
17. 17.115 × 9 =
18. 18.4309 × 999 =
19. 19.7 × 9 =
20. 20.19 × 99 =
21. 21.13 × 99 =
22. 22.3 × 9 =
23. 23.6 × 9 =
24. 24.268 × 999 =
25. 25.8 × 9 =
26. 26.37 × 99 =
27. 27.3 × 9 =
28. 28.982 × 99 =
29. 29.4 × 9 =
30. 30.3 × 9 =
31. 31.87 × 99 =
32. 32.172 × 999 =
33. 33.26 × 99 =
34. 34.4 × 9 =
35. 35.1454 × 99 =
36. 36.27 × 99 =
37. 37.5 × 9 =
38. 38.17 × 99 =
39. 39.19 × 99 =
40. 40.6831 × 999 =

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