Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 55 · 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. 1.11367 × 999 =
2. 2.8 × 99 =
3. 3.3 × 9 =
4. 4.2354 × 99 =
5. 5.574 × 999 =
6. 6.3 × 9 =
7. 7.441 × 99 =
8. 8.7 × 9 =
9. 9.92 × 99 =
10. 10.844 × 999 =
11. 11.4 × 9 =
12. 12.856 × 999 =
13. 13.2 × 9 =
14. 14.93 × 99 =
15. 15.8647 × 999 =
16. 16.8 × 999 =
17. 17.331 × 999 =
18. 18.8 × 9 =
19. 19.167 × 9 =
20. 20.238 × 9 =
21. 21.21354 × 999 =
22. 22.41 × 9 =
23. 23.265 × 999 =
24. 24.76 × 9 =
25. 25.6 × 9 =
26. 26.18455 × 999 =
27. 27.21 × 99 =
28. 28.13105 × 999 =
29. 29.3 × 9 =
30. 30.7 × 9 =
31. 31.28 × 99 =
32. 32.996 × 999 =
33. 33.2 × 9 =
34. 34.3 × 9 =
35. 35.347 × 999 =
36. 36.19101 × 999 =
37. 37.451 × 999 =
38. 38.5384 × 999 =
39. 39.44 × 99 =
40. 40.4 × 9 =

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