Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 382 · 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. 1.949 × 999 =
2. 2.338 × 999 =
3. 3.171 × 9 =
4. 4.93 × 999 =
5. 5.28 × 9 =
6. 6.1588 × 99 =
7. 7.7 × 9 =
8. 8.2459 × 99 =
9. 9.3 × 9 =
10. 10.21 × 99 =
11. 11.2 × 9 =
12. 12.415 × 999 =
13. 13.84 × 99 =
14. 14.885 × 999 =
15. 15.28 × 99 =
16. 16.3 × 9 =
17. 17.3 × 9 =
18. 18.195 × 9 =
19. 19.3 × 9 =
20. 20.1709 × 999 =
21. 21.108 × 999 =
22. 22.7 × 999 =
23. 23.7 × 9 =
24. 24.2 × 9 =
25. 25.6 × 9 =
26. 26.57 × 999 =
27. 27.6 × 9 =
28. 28.75 × 99 =
29. 29.2 × 9 =
30. 30.297 × 999 =
31. 31.25 × 99 =
32. 32.69 × 99 =
33. 33.4 × 9 =
34. 34.8 × 9 =
35. 35.3 × 9 =
36. 36.6 × 9 =
37. 37.62 × 99 =
38. 38.6 × 99 =
39. 39.581 × 999 =
40. 40.649 × 999 =

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