Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 363 · 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. 1.36 × 9 =
2. 2.22 × 99 =
3. 3.7 × 9 =
4. 4.971 × 99 =
5. 5.2 × 9 =
6. 6.6 × 9 =
7. 7.828 × 999 =
8. 8.2 × 9 =
9. 9.1115 × 99 =
10. 10.7 × 9 =
11. 11.79 × 99 =
12. 12.643 × 999 =
13. 13.971 × 999 =
14. 14.4 × 9 =
15. 15.6 × 9 =
16. 16.52 × 99 =
17. 17.18 × 99 =
18. 18.3 × 9 =
19. 19.137 × 999 =
20. 20.5 × 9 =
21. 21.4 × 9 =
22. 22.5 × 9 =
23. 23.4 × 9 =
24. 24.134 × 9 =
25. 25.189 × 999 =
26. 26.838 × 999 =
27. 27.108 × 9 =
28. 28.7 × 9 =
29. 29.3 × 9 =
30. 30.221 × 9 =
31. 31.61 × 99 =
32. 32.17 × 99 =
33. 33.108 × 9 =
34. 34.24 × 99 =
35. 35.946 × 999 =
36. 36.64 × 9 =
37. 37.6 × 9 =
38. 38.71 × 9 =
39. 39.19559 × 999 =
40. 40.257 × 999 =

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