Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 70 · 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. 1.146 × 999 =
2. 2.21 × 99 =
3. 3.68 × 99 =
4. 4.91 × 99 =
5. 5.25212 × 999 =
6. 6.69 × 99 =
7. 7.489 × 999 =
8. 8.828 × 99 =
9. 9.6 × 9 =
10. 10.189 × 999 =
11. 11.19 × 99 =
12. 12.21 × 99 =
13. 13.4 × 9 =
14. 14.6 × 9 =
15. 15.4 × 9 =
16. 16.2 × 9 =
17. 17.7 × 9 =
18. 18.79 × 99 =
19. 19.67 × 99 =
20. 20.8 × 9 =
21. 21.81 × 99 =
22. 22.2 × 9 =
23. 23.3961 × 999 =
24. 24.3745 × 999 =
25. 25.56 × 99 =
26. 26.193 × 999 =
27. 27.3 × 9 =
28. 28.5 × 99 =
29. 29.88 × 99 =
30. 30.89 × 9 =
31. 31.5 × 9 =
32. 32.19122 × 999 =
33. 33.11454 × 999 =
34. 34.29 × 99 =
35. 35.7 × 9 =
36. 36.21121 × 999 =
37. 37.108 × 9 =
38. 38.164 × 9 =
39. 39.1159 × 99 =
40. 40.31 × 99 =

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