Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 963 · 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. 1.128 × 99 =
2. 2.674 × 999 =
3. 3.48 × 99 =
4. 4.3 × 9 =
5. 5.2 × 9 =
6. 6.67 × 99 =
7. 7.4 × 9 =
8. 8.13235 × 999 =
9. 9.251 × 9 =
10. 10.579 × 999 =
11. 11.473 × 999 =
12. 12.11135 × 999 =
13. 13.69 × 99 =
14. 14.174 × 999 =
15. 15.22927 × 999 =
16. 16.78 × 9 =
17. 17.139 × 999 =
18. 18.526 × 999 =
19. 19.27822 × 999 =
20. 20.98 × 9 =
21. 21.22 × 9 =
22. 22.21952 × 999 =
23. 23.6 × 9 =
24. 24.638 × 99 =
25. 25.404 × 999 =
26. 26.2465 × 99 =
27. 27.11 × 999 =
28. 28.5 × 9 =
29. 29.36 × 9 =
30. 30.891 × 999 =
31. 31.6 × 9 =
32. 32.3 × 9 =
33. 33.81 × 99 =
34. 34.1691 × 999 =
35. 35.21 × 99 =
36. 36.865 × 999 =
37. 37.3 × 9 =
38. 38.21 × 999 =
39. 39.643 × 999 =
40. 40.24 × 99 =

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