Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 320 · 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. 1.445 × 999 =
2. 2.6 × 9 =
3. 3.888 × 999 =
4. 4.2 × 9 =
5. 5.56 × 99 =
6. 6.619 × 999 =
7. 7.176 × 9 =
8. 8.5 × 9 =
9. 9.2 × 9 =
10. 10.29 × 99 =
11. 11.1542 × 99 =
12. 12.33 × 99 =
13. 13.13 × 99 =
14. 14.1991 × 99 =
15. 15.7 × 9 =
16. 16.4 × 9 =
17. 17.687 × 999 =
18. 18.73 × 99 =
19. 19.6 × 9 =
20. 20.25384 × 999 =
21. 21.16 × 99 =
22. 22.39 × 99 =
23. 23.15 × 99 =
24. 24.91 × 99 =
25. 25.291 × 999 =
26. 26.7 × 9 =
27. 27.2774 × 99 =
28. 28.1183 × 99 =
29. 29.22729 × 999 =
30. 30.141 × 9 =
31. 31.71 × 999 =
32. 32.76 × 99 =
33. 33.19 × 99 =
34. 34.32 × 99 =
35. 35.3 × 9 =
36. 36.133 × 9 =
37. 37.20676 × 999 =
38. 38.3 × 9 =
39. 39.91 × 99 =
40. 40.39 × 99 =

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