Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 287 · 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. 1.353 × 999 =
2. 2.27 × 99 =
3. 3.43 × 99 =
4. 4.1549 × 99 =
5. 5.7 × 9 =
6. 6.11 × 99 =
7. 7.56 × 9 =
8. 8.667 × 999 =
9. 9.85 × 99 =
10. 10.253 × 999 =
11. 11.241 × 999 =
12. 12.893 × 999 =
13. 13.41 × 99 =
14. 14.6 × 9 =
15. 15.6 × 9 =
16. 16.6 × 9 =
17. 17.43 × 99 =
18. 18.4 × 9 =
19. 19.74 × 99 =
20. 20.6 × 9 =
21. 21.3 × 9 =
22. 22.536 × 999 =
23. 23.4 × 9 =
24. 24.28 × 99 =
25. 25.56 × 99 =
26. 26.8 × 9 =
27. 27.29 × 99 =
28. 28.602 × 99 =
29. 29.69 × 99 =
30. 30.8 × 9 =
31. 31.401 × 999 =
32. 32.303 × 999 =
33. 33.2768 × 99 =
34. 34.22017 × 999 =
35. 35.2361 × 99 =
36. 36.8 × 9 =
37. 37.28 × 99 =
38. 38.126 × 999 =
39. 39.12 × 99 =
40. 40.884 × 999 =

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