Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 736 · 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. 1.173 × 999 =
2. 2.83 × 9 =
3. 3.10418 × 999 =
4. 4.721 × 99 =
5. 5.19085 × 999 =
6. 6.1454 × 99 =
7. 7.85 × 99 =
8. 8.322 × 999 =
9. 9.188 × 9 =
10. 10.718 × 99 =
11. 11.2337 × 99 =
12. 12.713 × 999 =
13. 13.235 × 999 =
14. 14.5 × 9 =
15. 15.256 × 999 =
16. 16.34 × 99 =
17. 17.946 × 999 =
18. 18.186 × 999 =
19. 19.7 × 9 =
20. 20.219 × 9 =
21. 21.8 × 9 =
22. 22.246 × 999 =
23. 23.31 × 99 =
24. 24.7 × 9 =
25. 25.2158 × 99 =
26. 26.311 × 999 =
27. 27.73 × 9 =
28. 28.3 × 9 =
29. 29.8 × 9 =
30. 30.7 × 9 =
31. 31.406 × 999 =
32. 32.578 × 999 =
33. 33.2097 × 99 =
34. 34.142 × 9 =
35. 35.71 × 99 =
36. 36.37 × 99 =
37. 37.22783 × 999 =
38. 38.6 × 9 =
39. 39.7 × 9 =
40. 40.184 × 9 =

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