Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 566 · 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. 1.11897 × 999 =
2. 2.8 × 9 =
3. 3.18 × 99 =
4. 4.335 × 999 =
5. 5.11 × 99 =
6. 6.128 × 9 =
7. 7.37 × 99 =
8. 8.2 × 9 =
9. 9.683 × 999 =
10. 10.41 × 9 =
11. 11.82 × 99 =
12. 12.52 × 9 =
13. 13.1577 × 99 =
14. 14.6 × 99 =
15. 15.69 × 99 =
16. 16.167 × 999 =
17. 17.118 × 9 =
18. 18.112 × 9 =
19. 19.8 × 9 =
20. 20.7 × 9 =
21. 21.1361 × 99 =
22. 22.826 × 999 =
23. 23.1384 × 99 =
24. 24.312 × 99 =
25. 25.87 × 99 =
26. 26.96 × 99 =
27. 27.6 × 9 =
28. 28.4 × 9 =
29. 29.37 × 9 =
30. 30.83 × 99 =
31. 31.36 × 99 =
32. 32.572 × 99 =
33. 33.2592 × 99 =
34. 34.2 × 9 =
35. 35.21 × 99 =
36. 36.18 × 99 =
37. 37.2 × 9 =
38. 38.956 × 99 =
39. 39.203 × 9 =
40. 40.2 × 9 =

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