Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 462 · 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. 1.24743 × 999 =
2. 2.1992 × 99 =
3. 3.348 × 999 =
4. 4.18 × 99 =
5. 5.7097 × 999 =
6. 6.59 × 99 =
7. 7.753 × 999 =
8. 8.4 × 9 =
9. 9.537 × 999 =
10. 10.49 × 99 =
11. 11.1421 × 99 =
12. 12.23 × 99 =
13. 13.7 × 9 =
14. 14.115 × 9 =
15. 15.2 × 9 =
16. 16.45 × 99 =
17. 17.652 × 999 =
18. 18.27 × 999 =
19. 19.82 × 99 =
20. 20.7 × 9 =
21. 21.68 × 99 =
22. 22.4 × 9 =
23. 23.5 × 99 =
24. 24.32 × 99 =
25. 25.2 × 9 =
26. 26.20298 × 999 =
27. 27.33 × 99 =
28. 28.5 × 9 =
29. 29.23 × 99 =
30. 30.553 × 999 =
31. 31.372 × 99 =
32. 32.2767 × 99 =
33. 33.2 × 9 =
34. 34.2 × 9 =
35. 35.203 × 9 =
36. 36.581 × 99 =
37. 37.244 × 9 =
38. 38.5 × 99 =
39. 39.3 × 99 =
40. 40.837 × 999 =

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