Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 603 · 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. 1.6624 × 999 =
2. 2.3 × 9 =
3. 3.43 × 99 =
4. 4.216 × 9 =
5. 5.5 × 9 =
6. 6.68 × 99 =
7. 7.2 × 9 =
8. 8.8184 × 999 =
9. 9.28 × 99 =
10. 10.2 × 9 =
11. 11.36 × 99 =
12. 12.2 × 9 =
13. 13.237 × 9 =
14. 14.669 × 999 =
15. 15.31 × 99 =
16. 16.614 × 99 =
17. 17.65 × 99 =
18. 18.74 × 9 =
19. 19.591 × 999 =
20. 20.54 × 99 =
21. 21.3 × 99 =
22. 22.6 × 9 =
23. 23.133 × 999 =
24. 24.82 × 99 =
25. 25.5 × 9 =
26. 26.217 × 999 =
27. 27.3 × 9 =
28. 28.7 × 9 =
29. 29.5 × 9 =
30. 30.2965 × 99 =
31. 31.369 × 999 =
32. 32.23153 × 999 =
33. 33.2 × 9 =
34. 34.41 × 999 =
35. 35.65 × 99 =
36. 36.3 × 9 =
37. 37.8 × 9 =
38. 38.91 × 99 =
39. 39.11 × 99 =
40. 40.45 × 9 =

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