Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 912 · 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. 1.104 × 9 =
2. 2.7 × 9 =
3. 3.6 × 9 =
4. 4.6 × 99 =
5. 5.5 × 9 =
6. 6.8 × 99 =
7. 7.5 × 9 =
8. 8.31 × 99 =
9. 9.93 × 99 =
10. 10.5 × 9 =
11. 11.761 × 999 =
12. 12.919 × 99 =
13. 13.88 × 99 =
14. 14.26248 × 999 =
15. 15.606 × 999 =
16. 16.944 × 99 =
17. 17.43 × 99 =
18. 18.814 × 999 =
19. 19.144 × 999 =
20. 20.262 × 9 =
21. 21.4 × 9 =
22. 22.6 × 9 =
23. 23.361 × 999 =
24. 24.7 × 9 =
25. 25.12 × 99 =
26. 26.262 × 9 =
27. 27.51 × 99 =
28. 28.10897 × 999 =
29. 29.2785 × 99 =
30. 30.89 × 99 =
31. 31.545 × 999 =
32. 32.794 × 999 =
33. 33.1406 × 99 =
34. 34.485 × 99 =
35. 35.1358 × 99 =
36. 36.14751 × 999 =
37. 37.2 × 9 =
38. 38.72 × 99 =
39. 39.951 × 999 =
40. 40.63 × 99 =

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