Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 9 · 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. 1.603 × 99 =
2. 2.77 × 9 =
3. 3.424 × 999 =
4. 4.273 × 999 =
5. 5.294 × 999 =
6. 6.5 × 99 =
7. 7.46 × 99 =
8. 8.11 × 99 =
9. 9.751 × 999 =
10. 10.5 × 99 =
11. 11.29 × 99 =
12. 12.3 × 9 =
13. 13.2166 × 99 =
14. 14.877 × 999 =
15. 15.444 × 99 =
16. 16.61 × 999 =
17. 17.95 × 99 =
18. 18.42 × 9 =
19. 19.131 × 9 =
20. 20.657 × 999 =
21. 21.374 × 999 =
22. 22.958 × 99 =
23. 23.45 × 99 =
24. 24.95 × 99 =
25. 25.837 × 999 =
26. 26.65 × 99 =
27. 27.85 × 9 =
28. 28.281 × 999 =
29. 29.941 × 999 =
30. 30.6 × 9 =
31. 31.41 × 99 =
32. 32.688 × 999 =
33. 33.14932 × 999 =
34. 34.244 × 999 =
35. 35.89 × 99 =
36. 36.6 × 9 =
37. 37.38 × 9 =
38. 38.148 × 9 =
39. 39.18576 × 999 =
40. 40.2305 × 99 =

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