Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 126 · 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. 1.51 × 99 =
2. 2.94 × 999 =
3. 3.41 × 99 =
4. 4.178 × 999 =
5. 5.178 × 999 =
6. 6.7 × 9 =
7. 7.6 × 9 =
8. 8.628 × 999 =
9. 9.2 × 9 =
10. 10.8 × 99 =
11. 11.38 × 9 =
12. 12.5 × 9 =
13. 13.646 × 999 =
14. 14.961 × 999 =
15. 15.41 × 9 =
16. 16.265 × 9 =
17. 17.5 × 9 =
18. 18.28691 × 999 =
19. 19.7151 × 999 =
20. 20.3 × 9 =
21. 21.8 × 9 =
22. 22.28 × 99 =
23. 23.25 × 99 =
24. 24.163 × 999 =
25. 25.1569 × 99 =
26. 26.44 × 99 =
27. 27.4 × 9 =
28. 28.97 × 99 =
29. 29.69 × 99 =
30. 30.897 × 999 =
31. 31.742 × 99 =
32. 32.3 × 9 =
33. 33.205 × 999 =
34. 34.131 × 999 =
35. 35.87 × 99 =
36. 36.267 × 999 =
37. 37.3 × 9 =
38. 38.1239 × 99 =
39. 39.25 × 99 =
40. 40.3 × 9 =

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