Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 851 · 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. 1.149 × 9 =
2. 2.7 × 9 =
3. 3.169 × 999 =
4. 4.4 × 9 =
5. 5.5 × 9 =
6. 6.98 × 99 =
7. 7.61 × 99 =
8. 8.72 × 999 =
9. 9.5 × 9 =
10. 10.932 × 99 =
11. 11.44 × 99 =
12. 12.626 × 999 =
13. 13.38 × 99 =
14. 14.59 × 9 =
15. 15.23 × 9 =
16. 16.36 × 999 =
17. 17.52 × 99 =
18. 18.7 × 9 =
19. 19.37 × 99 =
20. 20.71 × 99 =
21. 21.2814 × 999 =
22. 22.5 × 9 =
23. 23.954 × 999 =
24. 24.8 × 9 =
25. 25.162 × 99 =
26. 26.2195 × 99 =
27. 27.16 × 9 =
28. 28.14 × 99 =
29. 29.658 × 999 =
30. 30.8 × 9 =
31. 31.233 × 9 =
32. 32.779 × 999 =
33. 33.4 × 9 =
34. 34.5 × 9 =
35. 35.207 × 999 =
36. 36.4 × 9 =
37. 37.7 × 9 =
38. 38.26 × 99 =
39. 39.8 × 9 =
40. 40.117 × 9 =

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