Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 551 · 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. 1.7 × 9 =
2. 2.279 × 999 =
3. 3.28 × 999 =
4. 4.29 × 99 =
5. 5.14 × 99 =
6. 6.1171 × 99 =
7. 7.2953 × 99 =
8. 8.8 × 9 =
9. 9.4 × 9 =
10. 10.116 × 9 =
11. 11.8674 × 999 =
12. 12.7 × 9 =
13. 13.755 × 999 =
14. 14.792 × 999 =
15. 15.8 × 9 =
16. 16.5 × 9 =
17. 17.7 × 9 =
18. 18.514 × 999 =
19. 19.97 × 99 =
20. 20.4 × 9 =
21. 21.20501 × 999 =
22. 22.23654 × 999 =
23. 23.91 × 99 =
24. 24.68 × 99 =
25. 25.72 × 99 =
26. 26.664 × 999 =
27. 27.143 × 999 =
28. 28.7 × 9 =
29. 29.43 × 99 =
30. 30.5 × 9 =
31. 31.5 × 99 =
32. 32.47 × 9 =
33. 33.35 × 99 =
34. 34.2 × 9 =
35. 35.1419 × 99 =
36. 36.254 × 999 =
37. 37.28089 × 999 =
38. 38.32 × 9 =
39. 39.327 × 999 =
40. 40.2 × 99 =

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