Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 122 · 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. 1.626 × 999 =
2. 2.74 × 99 =
3. 3.105 × 9 =
4. 4.1511 × 99 =
5. 5.7 × 9 =
6. 6.2 × 9 =
7. 7.5 × 9 =
8. 8.5 × 9 =
9. 9.8 × 9 =
10. 10.7 × 999 =
11. 11.98 × 99 =
12. 12.4 × 9 =
13. 13.211 × 999 =
14. 14.3 × 9 =
15. 15.26 × 99 =
16. 16.41 × 99 =
17. 17.7 × 9 =
18. 18.2 × 9 =
19. 19.984 × 99 =
20. 20.244 × 9 =
21. 21.52 × 99 =
22. 22.4 × 9 =
23. 23.31 × 999 =
24. 24.6 × 9 =
25. 25.2 × 9 =
26. 26.13 × 99 =
27. 27.152 × 9 =
28. 28.7 × 9 =
29. 29.5 × 9 =
30. 30.1409 × 99 =
31. 31.172 × 999 =
32. 32.34 × 99 =
33. 33.53 × 99 =
34. 34.2 × 9 =
35. 35.192 × 9 =
36. 36.3 × 9 =
37. 37.6 × 9 =
38. 38.9203 × 999 =
39. 39.28271 × 999 =
40. 40.31 × 99 =

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