Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 60 · 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. 1.8394 × 999 =
2. 2.727 × 99 =
3. 3.32 × 99 =
4. 4.21 × 99 =
5. 5.176 × 9 =
6. 6.14 × 99 =
7. 7.18342 × 999 =
8. 8.1093 × 99 =
9. 9.3 × 9 =
10. 10.42 × 99 =
11. 11.27804 × 999 =
12. 12.81 × 999 =
13. 13.552 × 999 =
14. 14.8 × 9 =
15. 15.3 × 9 =
16. 16.93 × 99 =
17. 17.72 × 99 =
18. 18.25053 × 999 =
19. 19.7 × 9 =
20. 20.741 × 999 =
21. 21.49 × 99 =
22. 22.8 × 9 =
23. 23.1711 × 99 =
24. 24.51 × 99 =
25. 25.23091 × 999 =
26. 26.3 × 9 =
27. 27.3 × 9 =
28. 28.4 × 9 =
29. 29.34 × 999 =
30. 30.57 × 99 =
31. 31.22 × 99 =
32. 32.3 × 9 =
33. 33.8 × 9 =
34. 34.2 × 9 =
35. 35.35 × 99 =
36. 36.21 × 9 =
37. 37.4 × 9 =
38. 38.76 × 99 =
39. 39.609 × 999 =
40. 40.4 × 9 =

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