Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 450 · 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. 1.6 × 9 =
2. 2.122 × 999 =
3. 3.93 × 99 =
4. 4.64 × 99 =
5. 5.6 × 9 =
6. 6.241 × 9 =
7. 7.5 × 9 =
8. 8.174 × 9 =
9. 9.7 × 9 =
10. 10.17 × 99 =
11. 11.52 × 99 =
12. 12.838 × 999 =
13. 13.47 × 99 =
14. 14.6 × 9 =
15. 15.5 × 9 =
16. 16.6 × 9 =
17. 17.3 × 9 =
18. 18.2 × 9 =
19. 19.43 × 99 =
20. 20.4151 × 999 =
21. 21.98 × 9 =
22. 22.569 × 99 =
23. 23.271 × 99 =
24. 24.116 × 9 =
25. 25.9 × 99 =
26. 26.152 × 999 =
27. 27.181 × 999 =
28. 28.28357 × 999 =
29. 29.5 × 9 =
30. 30.17031 × 999 =
31. 31.574 × 99 =
32. 32.862 × 999 =
33. 33.4 × 9 =
34. 34.47 × 99 =
35. 35.4 × 9 =
36. 36.41 × 99 =
37. 37.23724 × 999 =
38. 38.8 × 9 =
39. 39.8 × 9 =
40. 40.893 × 99 =

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