Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 755 · 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. 1.686 × 999 =
2. 2.2 × 9 =
3. 3.87 × 99 =
4. 4.268 × 999 =
5. 5.92 × 9 =
6. 6.2 × 9 =
7. 7.359 × 999 =
8. 8.41 × 99 =
9. 9.488 × 999 =
10. 10.68 × 99 =
11. 11.773 × 999 =
12. 12.2562 × 99 =
13. 13.255 × 999 =
14. 14.1179 × 99 =
15. 15.845 × 999 =
16. 16.10084 × 999 =
17. 17.63 × 99 =
18. 18.7 × 9 =
19. 19.15742 × 999 =
20. 20.183 × 99 =
21. 21.3 × 9 =
22. 22.3708 × 999 =
23. 23.31 × 9 =
24. 24.61 × 99 =
25. 25.6 × 9 =
26. 26.9 × 99 =
27. 27.6 × 99 =
28. 28.621 × 999 =
29. 29.3 × 9 =
30. 30.89 × 99 =
31. 31.3 × 9 =
32. 32.171 × 9 =
33. 33.5351 × 999 =
34. 34.6 × 9 =
35. 35.8 × 99 =
36. 36.52 × 99 =
37. 37.212 × 9 =
38. 38.3 × 9 =
39. 39.922 × 999 =
40. 40.93 × 99 =

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