Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 424 · 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. 1.25097 × 999 =
2. 2.5 × 9 =
3. 3.2 × 9 =
4. 4.247 × 9 =
5. 5.76 × 99 =
6. 6.58 × 99 =
7. 7.2 × 9 =
8. 8.867 × 999 =
9. 9.368 × 99 =
10. 10.7 × 9 =
11. 11.211 × 9 =
12. 12.7 × 99 =
13. 13.63 × 99 =
14. 14.12 × 99 =
15. 15.6 × 9 =
16. 16.7 × 9 =
17. 17.24 × 99 =
18. 18.803 × 999 =
19. 19.59 × 99 =
20. 20.55 × 99 =
21. 21.237 × 999 =
22. 22.2494 × 99 =
23. 23.4 × 9 =
24. 24.37 × 99 =
25. 25.4 × 9 =
26. 26.8839 × 999 =
27. 27.3 × 9 =
28. 28.72 × 99 =
29. 29.1371 × 99 =
30. 30.249 × 9 =
31. 31.6 × 9 =
32. 32.173 × 9 =
33. 33.3 × 9 =
34. 34.117 × 999 =
35. 35.21 × 99 =
36. 36.31 × 99 =
37. 37.69 × 99 =
38. 38.6 × 9 =
39. 39.5565 × 999 =
40. 40.756 × 999 =

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