Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 849 · 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. 1.14 × 99 =
2. 2.125 × 9 =
3. 3.123 × 9 =
4. 4.4 × 9 =
5. 5.2 × 9 =
6. 6.66 × 9 =
7. 7.67 × 99 =
8. 8.72 × 99 =
9. 9.421 × 999 =
10. 10.1208 × 99 =
11. 11.4 × 9 =
12. 12.4 × 9 =
13. 13.1588 × 99 =
14. 14.3 × 99 =
15. 15.69 × 99 =
16. 16.44 × 99 =
17. 17.297 × 999 =
18. 18.29 × 99 =
19. 19.573 × 999 =
20. 20.9 × 99 =
21. 21.36 × 99 =
22. 22.8 × 99 =
23. 23.2 × 9 =
24. 24.819 × 999 =
25. 25.2881 × 99 =
26. 26.94 × 99 =
27. 27.37 × 99 =
28. 28.2046 × 99 =
29. 29.15 × 99 =
30. 30.12 × 99 =
31. 31.443 × 999 =
32. 32.197 × 9 =
33. 33.4 × 9 =
34. 34.58 × 99 =
35. 35.68 × 99 =
36. 36.5 × 9 =
37. 37.239 × 9 =
38. 38.45 × 99 =
39. 39.8 × 9 =
40. 40.616 × 999 =

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