Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 843 · 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. 1.6 × 9 =
2. 2.23213 × 999 =
3. 3.21 × 99 =
4. 4.2 × 9 =
5. 5.2334 × 99 =
6. 6.2092 × 999 =
7. 7.20273 × 999 =
8. 8.144 × 9 =
9. 9.7 × 9 =
10. 10.7911 × 999 =
11. 11.2648 × 99 =
12. 12.83 × 99 =
13. 13.75 × 999 =
14. 14.2527 × 99 =
15. 15.4 × 9 =
16. 16.5 × 9 =
17. 17.441 × 999 =
18. 18.603 × 999 =
19. 19.5 × 9 =
20. 20.16181 × 999 =
21. 21.57 × 99 =
22. 22.2565 × 99 =
23. 23.184 × 9 =
24. 24.7 × 9 =
25. 25.366 × 999 =
26. 26.7 × 9 =
27. 27.26 × 99 =
28. 28.3 × 999 =
29. 29.1006 × 99 =
30. 30.415 × 999 =
31. 31.68 × 99 =
32. 32.63 × 9 =
33. 33.19946 × 999 =
34. 34.6898 × 999 =
35. 35.221 × 9 =
36. 36.61 × 99 =
37. 37.3 × 9 =
38. 38.1188 × 99 =
39. 39.74 × 99 =
40. 40.6 × 9 =

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