Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 777 · 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. 1.574 × 999 =
2. 2.187 × 9 =
3. 3.86 × 99 =
4. 4.899 × 999 =
5. 5.931 × 999 =
6. 6.938 × 999 =
7. 7.36 × 99 =
8. 8.2 × 9 =
9. 9.237 × 99 =
10. 10.906 × 999 =
11. 11.194 × 9 =
12. 12.38 × 999 =
13. 13.67 × 99 =
14. 14.8 × 9 =
15. 15.21 × 99 =
16. 16.98 × 99 =
17. 17.6 × 9 =
18. 18.91 × 99 =
19. 19.2332 × 99 =
20. 20.2 × 9 =
21. 21.1582 × 99 =
22. 22.591 × 999 =
23. 23.3 × 9 =
24. 24.8 × 9 =
25. 25.56 × 99 =
26. 26.845 × 99 =
27. 27.791 × 999 =
28. 28.5 × 9 =
29. 29.271 × 9 =
30. 30.85 × 99 =
31. 31.7 × 9 =
32. 32.155 × 9 =
33. 33.4 × 9 =
34. 34.15 × 99 =
35. 35.6449 × 999 =
36. 36.829 × 999 =
37. 37.5 × 9 =
38. 38.18822 × 999 =
39. 39.21 × 99 =
40. 40.51 × 99 =

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