Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 248 · 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. 2.4 × 9 =
3. 3.7 × 9 =
4. 4.7 × 9 =
5. 5.1445 × 99 =
6. 6.4 × 9 =
7. 7.989 × 999 =
8. 8.827 × 999 =
9. 9.95 × 9 =
10. 10.361 × 999 =
11. 11.3 × 9 =
12. 12.56 × 99 =
13. 13.19 × 999 =
14. 14.62 × 99 =
15. 15.6 × 9 =
16. 16.42 × 9 =
17. 17.51 × 99 =
18. 18.87 × 99 =
19. 19.33 × 99 =
20. 20.153 × 999 =
21. 21.11 × 99 =
22. 22.466 × 999 =
23. 23.498 × 999 =
24. 24.8 × 999 =
25. 25.23 × 99 =
26. 26.192 × 999 =
27. 27.73 × 99 =
28. 28.401 × 999 =
29. 29.208 × 999 =
30. 30.6 × 9 =
31. 31.31 × 99 =
32. 32.7 × 9 =
33. 33.5 × 9 =
34. 34.735 × 999 =
35. 35.468 × 99 =
36. 36.7115 × 999 =
37. 37.6 × 9 =
38. 38.7 × 9 =
39. 39.4 × 9 =
40. 40.4 × 9 =

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