Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 344 · 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. 1.419 × 999 =
2. 2.76 × 9 =
3. 3.11 × 99 =
4. 4.22745 × 999 =
5. 5.5 × 99 =
6. 6.8 × 9 =
7. 7.829 × 99 =
8. 8.16 × 99 =
9. 9.8 × 99 =
10. 10.88 × 99 =
11. 11.6 × 9 =
12. 12.89 × 99 =
13. 13.2 × 9 =
14. 14.561 × 999 =
15. 15.2552 × 99 =
16. 16.3 × 9 =
17. 17.2 × 9 =
18. 18.14638 × 999 =
19. 19.17084 × 999 =
20. 20.272 × 999 =
21. 21.7 × 9 =
22. 22.105 × 99 =
23. 23.417 × 999 =
24. 24.2 × 9 =
25. 25.91 × 99 =
26. 26.994 × 99 =
27. 27.8 × 9 =
28. 28.79 × 9 =
29. 29.45 × 99 =
30. 30.224 × 999 =
31. 31.778 × 999 =
32. 32.8 × 9 =
33. 33.165 × 9 =
34. 34.6 × 99 =
35. 35.183 × 999 =
36. 36.58 × 9 =
37. 37.3 × 9 =
38. 38.3 × 9 =
39. 39.91 × 999 =
40. 40.93 × 99 =

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