Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 837 · 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. 1.4 × 9 =
2. 2.2141 × 99 =
3. 3.3 × 99 =
4. 4.5 × 9 =
5. 5.95 × 99 =
6. 6.5 × 9 =
7. 7.8 × 9 =
8. 8.2372 × 99 =
9. 9.64 × 99 =
10. 10.29232 × 999 =
11. 11.7674 × 999 =
12. 12.1283 × 99 =
13. 13.3 × 9 =
14. 14.15 × 99 =
15. 15.538 × 999 =
16. 16.4 × 9 =
17. 17.5 × 9 =
18. 18.2909 × 99 =
19. 19.61 × 99 =
20. 20.87 × 99 =
21. 21.5 × 9 =
22. 22.17 × 99 =
23. 23.8 × 9 =
24. 24.29 × 99 =
25. 25.858 × 999 =
26. 26.8 × 9 =
27. 27.2 × 9 =
28. 28.11321 × 999 =
29. 29.41 × 9 =
30. 30.6 × 9 =
31. 31.91 × 99 =
32. 32.17732 × 999 =
33. 33.2901 × 99 =
34. 34.229 × 9 =
35. 35.136 × 999 =
36. 36.84 × 9 =
37. 37.335 × 999 =
38. 38.11782 × 999 =
39. 39.191 × 99 =
40. 40.607 × 999 =

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