Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 235 · 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. 1.8 × 9 =
2. 2.742 × 999 =
3. 3.57 × 99 =
4. 4.71 × 99 =
5. 5.2 × 9 =
6. 6.494 × 999 =
7. 7.67 × 99 =
8. 8.10217 × 999 =
9. 9.18 × 9 =
10. 10.271 × 999 =
11. 11.94 × 99 =
12. 12.8 × 9 =
13. 13.22 × 99 =
14. 14.71 × 99 =
15. 15.3 × 9 =
16. 16.25 × 99 =
17. 17.59 × 999 =
18. 18.6 × 99 =
19. 19.97 × 99 =
20. 20.858 × 999 =
21. 21.526 × 999 =
22. 22.48 × 99 =
23. 23.27179 × 999 =
24. 24.2 × 9 =
25. 25.197 × 999 =
26. 26.78 × 99 =
27. 27.4 × 9 =
28. 28.419 × 99 =
29. 29.2 × 9 =
30. 30.34 × 99 =
31. 31.7 × 9 =
32. 32.2 × 9 =
33. 33.2179 × 99 =
34. 34.6 × 9 =
35. 35.8 × 9 =
36. 36.2 × 9 =
37. 37.725 × 999 =
38. 38.482 × 999 =
39. 39.81 × 99 =
40. 40.43 × 99 =

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