Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 889 · 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. 1.278 × 999 =
2. 2.5 × 9 =
3. 3.2 × 9 =
4. 4.217 × 9 =
5. 5.178 × 999 =
6. 6.2614 × 99 =
7. 7.2 × 9 =
8. 8.25469 × 999 =
9. 9.91 × 99 =
10. 10.471 × 999 =
11. 11.28589 × 999 =
12. 12.71 × 99 =
13. 13.7 × 9 =
14. 14.5 × 9 =
15. 15.272 × 99 =
16. 16.682 × 999 =
17. 17.88 × 99 =
18. 18.2713 × 99 =
19. 19.2416 × 99 =
20. 20.289 × 999 =
21. 21.128 × 9 =
22. 22.216 × 9 =
23. 23.3 × 99 =
24. 24.747 × 999 =
25. 25.8 × 9 =
26. 26.7 × 999 =
27. 27.156 × 99 =
28. 28.18305 × 999 =
29. 29.66 × 99 =
30. 30.8957 × 999 =
31. 31.35 × 99 =
32. 32.968 × 99 =
33. 33.2547 × 99 =
34. 34.51 × 99 =
35. 35.67 × 999 =
36. 36.2 × 9 =
37. 37.18894 × 999 =
38. 38.31 × 999 =
39. 39.6 × 9 =
40. 40.3766 × 999 =

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