Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 194 · 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. 1.68 × 999 =
2. 2.226 × 9 =
3. 3.831 × 999 =
4. 4.44 × 99 =
5. 5.2936 × 99 =
6. 6.64 × 99 =
7. 7.29002 × 999 =
8. 8.2 × 9 =
9. 9.738 × 999 =
10. 10.588 × 999 =
11. 11.6 × 9 =
12. 12.8 × 9 =
13. 13.502 × 99 =
14. 14.9 × 99 =
15. 15.5 × 9 =
16. 16.16 × 99 =
17. 17.24 × 99 =
18. 18.78 × 9 =
19. 19.5 × 9 =
20. 20.41 × 99 =
21. 21.23 × 99 =
22. 22.2789 × 99 =
23. 23.3 × 9 =
24. 24.8 × 9 =
25. 25.413 × 999 =
26. 26.2 × 9 =
27. 27.3 × 9 =
28. 28.67 × 99 =
29. 29.754 × 999 =
30. 30.621 × 999 =
31. 31.75 × 99 =
32. 32.21 × 999 =
33. 33.89 × 9 =
34. 34.15 × 99 =
35. 35.34 × 99 =
36. 36.2514 × 999 =
37. 37.804 × 999 =
38. 38.8 × 9 =
39. 39.8 × 9 =
40. 40.11 × 99 =

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