Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 443 · 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. 1.38 × 99 =
2. 2.3668 × 999 =
3. 3.61 × 99 =
4. 4.1477 × 99 =
5. 5.4 × 99 =
6. 6.85 × 99 =
7. 7.8 × 9 =
8. 8.301 × 999 =
9. 9.124 × 9 =
10. 10.2 × 9 =
11. 11.81 × 99 =
12. 12.16 × 99 =
13. 13.6987 × 999 =
14. 14.28372 × 999 =
15. 15.821 × 999 =
16. 16.91 × 99 =
17. 17.169 × 9 =
18. 18.139 × 9 =
19. 19.6 × 9 =
20. 20.18 × 99 =
21. 21.2618 × 999 =
22. 22.21 × 99 =
23. 23.357 × 999 =
24. 24.577 × 999 =
25. 25.29365 × 999 =
26. 26.1013 × 99 =
27. 27.271 × 9 =
28. 28.7 × 9 =
29. 29.153 × 99 =
30. 30.5 × 9 =
31. 31.307 × 99 =
32. 32.91 × 99 =
33. 33.54 × 99 =
34. 34.91 × 99 =
35. 35.6 × 9 =
36. 36.12 × 99 =
37. 37.651 × 999 =
38. 38.94 × 99 =
39. 39.485 × 999 =
40. 40.663 × 999 =

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