Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 113 · 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. 1.153 × 9 =
2. 2.7 × 9 =
3. 3.56 × 99 =
4. 4.47 × 99 =
5. 5.6 × 9 =
6. 6.664 × 999 =
7. 7.828 × 999 =
8. 8.51 × 99 =
9. 9.691 × 99 =
10. 10.174 × 999 =
11. 11.5 × 9 =
12. 12.387 × 999 =
13. 13.1811 × 99 =
14. 14.2 × 9 =
15. 15.11 × 99 =
16. 16.76 × 99 =
17. 17.3 × 9 =
18. 18.677 × 999 =
19. 19.4 × 9 =
20. 20.137 × 999 =
21. 21.2 × 9 =
22. 22.6 × 9 =
23. 23.24713 × 999 =
24. 24.2 × 9 =
25. 25.255 × 9 =
26. 26.8 × 9 =
27. 27.251 × 999 =
28. 28.15 × 99 =
29. 29.4 × 9 =
30. 30.72 × 99 =
31. 31.5 × 9 =
32. 32.29 × 99 =
33. 33.20903 × 999 =
34. 34.54 × 99 =
35. 35.12215 × 999 =
36. 36.813 × 999 =
37. 37.944 × 99 =
38. 38.77 × 9 =
39. 39.2399 × 99 =
40. 40.161 × 999 =

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