Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 280 · 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. 1.441 × 999 =
2. 2.78 × 99 =
3. 3.5 × 9 =
4. 4.435 × 999 =
5. 5.6 × 99 =
6. 6.39 × 9 =
7. 7.921 × 999 =
8. 8.5 × 9 =
9. 9.5 × 9 =
10. 10.1897 × 99 =
11. 11.64 × 9 =
12. 12.64 × 9 =
13. 13.6 × 9 =
14. 14.3 × 9 =
15. 15.621 × 999 =
16. 16.28621 × 999 =
17. 17.3 × 9 =
18. 18.43 × 99 =
19. 19.8 × 9 =
20. 20.401 × 999 =
21. 21.853 × 999 =
22. 22.24 × 99 =
23. 23.551 × 999 =
24. 24.107 × 9 =
25. 25.156 × 9 =
26. 26.8 × 9 =
27. 27.7 × 9 =
28. 28.618 × 999 =
29. 29.58 × 99 =
30. 30.2065 × 99 =
31. 31.2726 × 99 =
32. 32.23 × 99 =
33. 33.254 × 9 =
34. 34.21 × 99 =
35. 35.36 × 99 =
36. 36.2 × 99 =
37. 37.599 × 999 =
38. 38.3 × 9 =
39. 39.2 × 9 =
40. 40.98 × 99 =

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