Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 753 · 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. 1.854 × 999 =
2. 2.11493 × 999 =
3. 3.676 × 999 =
4. 4.502 × 999 =
5. 5.3 × 9 =
6. 6.49 × 99 =
7. 7.459 × 99 =
8. 8.13 × 99 =
9. 9.84 × 99 =
10. 10.5 × 9 =
11. 11.2 × 9 =
12. 12.2 × 9 =
13. 13.3 × 9 =
14. 14.29 × 9 =
15. 15.1516 × 999 =
16. 16.5 × 9 =
17. 17.8 × 9 =
18. 18.993 × 999 =
19. 19.201 × 9 =
20. 20.15 × 99 =
21. 21.485 × 999 =
22. 22.51 × 99 =
23. 23.5897 × 999 =
24. 24.7 × 9 =
25. 25.183 × 999 =
26. 26.8 × 9 =
27. 27.73 × 99 =
28. 28.5 × 9 =
29. 29.341 × 999 =
30. 30.31 × 99 =
31. 31.45 × 99 =
32. 32.2166 × 99 =
33. 33.72 × 99 =
34. 34.151 × 999 =
35. 35.3 × 9 =
36. 36.52 × 99 =
37. 37.7 × 9 =
38. 38.7 × 9 =
39. 39.921 × 999 =
40. 40.4 × 9 =

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