Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 690 · 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. 1.303 × 999 =
2. 2.134 × 999 =
3. 3.2671 × 99 =
4. 4.2655 × 99 =
5. 5.72 × 99 =
6. 6.8 × 9 =
7. 7.96 × 99 =
8. 8.1975 × 99 =
9. 9.8 × 9 =
10. 10.5673 × 999 =
11. 11.81 × 99 =
12. 12.87 × 99 =
13. 13.83 × 99 =
14. 14.2934 × 99 =
15. 15.11886 × 999 =
16. 16.5 × 9 =
17. 17.1761 × 99 =
18. 18.67 × 9 =
19. 19.1735 × 99 =
20. 20.158 × 9 =
21. 21.7 × 9 =
22. 22.299 × 999 =
23. 23.5 × 9 =
24. 24.6 × 9 =
25. 25.2529 × 99 =
26. 26.66 × 99 =
27. 27.655 × 999 =
28. 28.7 × 9 =
29. 29.29116 × 999 =
30. 30.2 × 9 =
31. 31.21 × 99 =
32. 32.4 × 9 =
33. 33.211 × 999 =
34. 34.2873 × 999 =
35. 35.2739 × 99 =
36. 36.2111 × 99 =
37. 37.5 × 9 =
38. 38.2 × 9 =
39. 39.3 × 9 =
40. 40.7 × 9 =

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