Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 474 · 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. 1.5 × 9 =
2. 2.2623 × 99 =
3. 3.7 × 9 =
4. 4.2794 × 99 =
5. 5.3 × 9 =
6. 6.4 × 9 =
7. 7.5 × 9 =
8. 8.8 × 9 =
9. 9.582 × 999 =
10. 10.874 × 999 =
11. 11.441 × 99 =
12. 12.15 × 99 =
13. 13.5 × 9 =
14. 14.4 × 9 =
15. 15.241 × 999 =
16. 16.1984 × 99 =
17. 17.51 × 99 =
18. 18.65 × 99 =
19. 19.69 × 99 =
20. 20.22 × 99 =
21. 21.1086 × 99 =
22. 22.3 × 9 =
23. 23.91 × 9 =
24. 24.16 × 99 =
25. 25.648 × 999 =
26. 26.5 × 9 =
27. 27.27 × 99 =
28. 28.66 × 99 =
29. 29.3 × 9 =
30. 30.766 × 999 =
31. 31.41 × 99 =
32. 32.92 × 99 =
33. 33.86 × 99 =
34. 34.647 × 999 =
35. 35.2 × 9 =
36. 36.6 × 9 =
37. 37.255 × 9 =
38. 38.378 × 999 =
39. 39.38 × 99 =
40. 40.895 × 999 =

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