Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 582 · 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. 1.64 × 9 =
2. 2.521 × 999 =
3. 3.3 × 9 =
4. 4.89 × 99 =
5. 5.65 × 99 =
6. 6.19 × 99 =
7. 7.268 × 999 =
8. 8.66 × 99 =
9. 9.4 × 9 =
10. 10.83 × 99 =
11. 11.915 × 99 =
12. 12.26 × 99 =
13. 13.7 × 9 =
14. 14.5 × 9 =
15. 15.49 × 999 =
16. 16.33 × 99 =
17. 17.52 × 99 =
18. 18.5 × 9 =
19. 19.942 × 999 =
20. 20.44 × 99 =
21. 21.42 × 99 =
22. 22.6 × 99 =
23. 23.139 × 999 =
24. 24.941 × 999 =
25. 25.22 × 9 =
26. 26.602 × 999 =
27. 27.176 × 999 =
28. 28.2 × 9 =
29. 29.3 × 9 =
30. 30.7 × 9 =
31. 31.31 × 99 =
32. 32.6 × 9 =
33. 33.749 × 999 =
34. 34.154 × 9 =
35. 35.18 × 99 =
36. 36.6 × 9 =
37. 37.48 × 9 =
38. 38.63 × 99 =
39. 39.85 × 99 =
40. 40.16 × 9 =

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