Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 708 · 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. 1.7 × 9 =
2. 2.41 × 99 =
3. 3.8 × 9 =
4. 4.35 × 99 =
5. 5.2 × 9 =
6. 6.4 × 9 =
7. 7.45 × 9 =
8. 8.2 × 9 =
9. 9.69 × 99 =
10. 10.2229 × 99 =
11. 11.748 × 999 =
12. 12.65 × 9 =
13. 13.7 × 9 =
14. 14.241 × 999 =
15. 15.21 × 99 =
16. 16.148 × 9 =
17. 17.11 × 999 =
18. 18.862 × 999 =
19. 19.3 × 9 =
20. 20.331 × 999 =
21. 21.8814 × 999 =
22. 22.121 × 9 =
23. 23.20882 × 999 =
24. 24.61 × 99 =
25. 25.797 × 999 =
26. 26.67 × 99 =
27. 27.6 × 9 =
28. 28.592 × 999 =
29. 29.85 × 99 =
30. 30.2518 × 999 =
31. 31.4 × 9 =
32. 32.81 × 99 =
33. 33.2 × 9 =
34. 34.13639 × 999 =
35. 35.6 × 9 =
36. 36.7 × 9 =
37. 37.94 × 99 =
38. 38.33 × 99 =
39. 39.27409 × 999 =
40. 40.23 × 99 =

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