Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 246 · 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. 1.195 × 9 =
2. 2.4 × 9 =
3. 3.146 × 999 =
4. 4.21176 × 999 =
5. 5.24 × 99 =
6. 6.74 × 99 =
7. 7.41 × 99 =
8. 8.6 × 9 =
9. 9.1821 × 99 =
10. 10.3 × 9 =
11. 11.93 × 99 =
12. 12.8 × 9 =
13. 13.192 × 999 =
14. 14.118 × 9 =
15. 15.138 × 999 =
16. 16.32 × 999 =
17. 17.1731 × 99 =
18. 18.1017 × 999 =
19. 19.944 × 999 =
20. 20.366 × 99 =
21. 21.923 × 999 =
22. 22.51 × 99 =
23. 23.5 × 9 =
24. 24.91 × 999 =
25. 25.842 × 999 =
26. 26.11 × 99 =
27. 27.65 × 99 =
28. 28.103 × 999 =
29. 29.53 × 999 =
30. 30.6 × 9 =
31. 31.107 × 9 =
32. 32.16 × 99 =
33. 33.264 × 999 =
34. 34.84 × 99 =
35. 35.5 × 9 =
36. 36.4 × 9 =
37. 37.85 × 99 =
38. 38.61 × 99 =
39. 39.6 × 9 =
40. 40.5 × 9 =

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