Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 549 · 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. 1.679 × 999 =
2. 2.237 × 999 =
3. 3.869 × 999 =
4. 4.81 × 99 =
5. 5.91 × 99 =
6. 6.79 × 99 =
7. 7.74 × 9 =
8. 8.864 × 999 =
9. 9.3 × 9 =
10. 10.883 × 999 =
11. 11.33 × 99 =
12. 12.256 × 999 =
13. 13.61 × 99 =
14. 14.2 × 9 =
15. 15.891 × 999 =
16. 16.1558 × 99 =
17. 17.886 × 999 =
18. 18.456 × 999 =
19. 19.4 × 9 =
20. 20.179 × 999 =
21. 21.21 × 99 =
22. 22.67 × 99 =
23. 23.111 × 999 =
24. 24.4 × 99 =
25. 25.45 × 99 =
26. 26.3 × 9 =
27. 27.24705 × 999 =
28. 28.1393 × 99 =
29. 29.94 × 99 =
30. 30.5964 × 999 =
31. 31.5 × 9 =
32. 32.18878 × 999 =
33. 33.181 × 9 =
34. 34.2 × 9 =
35. 35.38 × 99 =
36. 36.4 × 9 =
37. 37.21 × 99 =
38. 38.5 × 9 =
39. 39.111 × 9 =
40. 40.1261 × 99 =

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