Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 593 · 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. 1.4 × 9 =
2. 2.7 × 9 =
3. 3.22 × 99 =
4. 4.8 × 9 =
5. 5.7 × 9 =
6. 6.91 × 99 =
7. 7.2 × 9 =
8. 8.3 × 9 =
9. 9.2 × 9 =
10. 10.32 × 99 =
11. 11.206 × 9 =
12. 12.5 × 9 =
13. 13.2 × 9 =
14. 14.5 × 9 =
15. 15.28 × 99 =
16. 16.3 × 9 =
17. 17.826 × 999 =
18. 18.117 × 999 =
19. 19.25322 × 999 =
20. 20.179 × 999 =
21. 21.49 × 99 =
22. 22.612 × 999 =
23. 23.4 × 9 =
24. 24.328 × 999 =
25. 25.17 × 99 =
26. 26.4 × 9 =
27. 27.2378 × 99 =
28. 28.22 × 99 =
29. 29.2961 × 99 =
30. 30.7 × 9 =
31. 31.24413 × 999 =
32. 32.3 × 9 =
33. 33.766 × 999 =
34. 34.568 × 999 =
35. 35.258 × 999 =
36. 36.889 × 999 =
37. 37.134 × 999 =
38. 38.495 × 999 =
39. 39.13 × 99 =
40. 40.2 × 9 =

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