Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 881 · 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. 1.5 × 9 =
2. 2.8 × 9 =
3. 3.98 × 99 =
4. 4.2 × 9 =
5. 5.64 × 99 =
6. 6.1619 × 99 =
7. 7.8 × 9 =
8. 8.6 × 9 =
9. 9.8313 × 999 =
10. 10.4 × 9 =
11. 11.132 × 999 =
12. 12.88 × 99 =
13. 13.139 × 999 =
14. 14.62 × 999 =
15. 15.108 × 9 =
16. 16.2 × 9 =
17. 17.55 × 99 =
18. 18.33 × 99 =
19. 19.84 × 99 =
20. 20.41 × 99 =
21. 21.81 × 99 =
22. 22.15 × 99 =
23. 23.2958 × 99 =
24. 24.658 × 999 =
25. 25.2366 × 99 =
26. 26.968 × 999 =
27. 27.32 × 99 =
28. 28.21 × 99 =
29. 29.221 × 9 =
30. 30.147 × 99 =
31. 31.322 × 999 =
32. 32.85 × 99 =
33. 33.5 × 99 =
34. 34.6 × 9 =
35. 35.65 × 99 =
36. 36.174 × 99 =
37. 37.36 × 99 =
38. 38.1807 × 999 =
39. 39.29308 × 999 =
40. 40.3 × 9 =

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