Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 64 · 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. 1.143 × 9 =
2. 2.117 × 9 =
3. 3.442 × 999 =
4. 4.94 × 99 =
5. 5.36 × 99 =
6. 6.96 × 9 =
7. 7.98 × 9 =
8. 8.7 × 9 =
9. 9.61 × 99 =
10. 10.68 × 99 =
11. 11.974 × 999 =
12. 12.248 × 999 =
13. 13.2 × 9 =
14. 14.895 × 999 =
15. 15.82 × 9 =
16. 16.2 × 9 =
17. 17.7 × 99 =
18. 18.7 × 9 =
19. 19.71 × 9 =
20. 20.6 × 9 =
21. 21.9081 × 999 =
22. 22.247 × 9 =
23. 23.22 × 99 =
24. 24.9655 × 999 =
25. 25.3214 × 999 =
26. 26.831 × 999 =
27. 27.176 × 9 =
28. 28.53 × 99 =
29. 29.2 × 9 =
30. 30.2 × 9 =
31. 31.251 × 9 =
32. 32.3 × 9 =
33. 33.81 × 99 =
34. 34.2 × 9 =
35. 35.169 × 999 =
36. 36.2 × 9 =
37. 37.75 × 99 =
38. 38.817 × 999 =
39. 39.441 × 99 =
40. 40.2958 × 99 =

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