Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 704 · 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. 1.354 × 999 =
2. 2.105 × 9 =
3. 3.11 × 99 =
4. 4.331 × 999 =
5. 5.165 × 9 =
6. 6.493 × 999 =
7. 7.671 × 999 =
8. 8.595 × 999 =
9. 9.837 × 999 =
10. 10.2 × 9 =
11. 11.226 × 9 =
12. 12.2323 × 999 =
13. 13.138 × 9 =
14. 14.741 × 999 =
15. 15.56 × 99 =
16. 16.313 × 999 =
17. 17.74 × 99 =
18. 18.129 × 9 =
19. 19.46 × 99 =
20. 20.3 × 9 =
21. 21.23976 × 999 =
22. 22.339 × 999 =
23. 23.1886 × 99 =
24. 24.221 × 9 =
25. 25.1031 × 99 =
26. 26.6 × 9 =
27. 27.8 × 9 =
28. 28.5 × 9 =
29. 29.781 × 999 =
30. 30.168 × 999 =
31. 31.8 × 9 =
32. 32.79 × 9 =
33. 33.332 × 999 =
34. 34.21 × 99 =
35. 35.94 × 99 =
36. 36.52 × 99 =
37. 37.21 × 99 =
38. 38.98 × 99 =
39. 39.23335 × 999 =
40. 40.52 × 9 =

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