Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 118 · 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. 1.669 × 999 =
2. 2.281 × 99 =
3. 3.6 × 9 =
4. 4.1138 × 99 =
5. 5.7 × 9 =
6. 6.134 × 999 =
7. 7.193 × 999 =
8. 8.722 × 999 =
9. 9.2686 × 99 =
10. 10.71 × 9 =
11. 11.2 × 9 =
12. 12.3 × 9 =
13. 13.704 × 999 =
14. 14.4 × 99 =
15. 15.173 × 999 =
16. 16.76 × 99 =
17. 17.366 × 999 =
18. 18.5 × 9 =
19. 19.78 × 999 =
20. 20.441 × 999 =
21. 21.82 × 9 =
22. 22.91 × 99 =
23. 23.55 × 99 =
24. 24.23 × 999 =
25. 25.1881 × 99 =
26. 26.2501 × 99 =
27. 27.4 × 9 =
28. 28.4 × 9 =
29. 29.7 × 9 =
30. 30.2 × 9 =
31. 31.134 × 999 =
32. 32.57 × 99 =
33. 33.48 × 99 =
34. 34.7 × 9 =
35. 35.2 × 9 =
36. 36.188 × 9 =
37. 37.26537 × 999 =
38. 38.58 × 999 =
39. 39.73 × 99 =
40. 40.57 × 99 =

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