Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 285 · 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. 2.88 × 99 =
3. 3.652 × 999 =
4. 4.3 × 9 =
5. 5.13 × 999 =
6. 6.337 × 999 =
7. 7.4 × 9 =
8. 8.19 × 99 =
9. 9.9972 × 999 =
10. 10.5 × 9 =
11. 11.75 × 99 =
12. 12.81 × 99 =
13. 13.784 × 999 =
14. 14.95 × 99 =
15. 15.37 × 99 =
16. 16.51 × 99 =
17. 17.259 × 9 =
18. 18.2069 × 99 =
19. 19.6 × 9 =
20. 20.15398 × 999 =
21. 21.516 × 99 =
22. 22.837 × 999 =
23. 23.84 × 99 =
24. 24.75 × 99 =
25. 25.81 × 99 =
26. 26.20971 × 999 =
27. 27.95 × 99 =
28. 28.37 × 99 =
29. 29.8 × 9 =
30. 30.987 × 999 =
31. 31.514 × 999 =
32. 32.1792 × 99 =
33. 33.31 × 9 =
34. 34.808 × 999 =
35. 35.1729 × 99 =
36. 36.4 × 9 =
37. 37.6 × 9 =
38. 38.5 × 9 =
39. 39.267 × 9 =
40. 40.3159 × 999 =

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