Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 415 · 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. 1.752 × 999 =
2. 2.503 × 999 =
3. 3.11 × 99 =
4. 4.23 × 99 =
5. 5.324 × 999 =
6. 6.26 × 99 =
7. 7.7 × 9 =
8. 8.37 × 99 =
9. 9.116 × 9 =
10. 10.63 × 99 =
11. 11.337 × 999 =
12. 12.84 × 999 =
13. 13.2 × 9 =
14. 14.123 × 9 =
15. 15.4 × 9 =
16. 16.2 × 9 =
17. 17.41 × 99 =
18. 18.14 × 99 =
19. 19.118 × 9 =
20. 20.4 × 9 =
21. 21.7 × 9 =
22. 22.192 × 9 =
23. 23.1558 × 99 =
24. 24.421 × 999 =
25. 25.681 × 999 =
26. 26.35 × 99 =
27. 27.45 × 999 =
28. 28.10001 × 999 =
29. 29.18 × 99 =
30. 30.76 × 99 =
31. 31.2755 × 99 =
32. 32.801 × 999 =
33. 33.9906 × 999 =
34. 34.16 × 99 =
35. 35.33 × 99 =
36. 36.573 × 999 =
37. 37.623 × 999 =
38. 38.2467 × 99 =
39. 39.222 × 9 =
40. 40.2 × 9 =

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