Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 895 · 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. 1.856 × 999 =
2. 2.89 × 99 =
3. 3.4 × 9 =
4. 4.566 × 999 =
5. 5.2873 × 99 =
6. 6.3 × 9 =
7. 7.31 × 9 =
8. 8.8 × 9 =
9. 9.608 × 99 =
10. 10.63 × 99 =
11. 11.253 × 9 =
12. 12.46 × 99 =
13. 13.21 × 9 =
14. 14.31 × 99 =
15. 15.2764 × 99 =
16. 16.1711 × 99 =
17. 17.631 × 999 =
18. 18.2 × 9 =
19. 19.8 × 9 =
20. 20.18 × 99 =
21. 21.18 × 99 =
22. 22.279 × 999 =
23. 23.7 × 9 =
24. 24.4 × 9 =
25. 25.78 × 99 =
26. 26.835 × 999 =
27. 27.7 × 9 =
28. 28.75 × 99 =
29. 29.2758 × 99 =
30. 30.7 × 9 =
31. 31.182 × 999 =
32. 32.117 × 999 =
33. 33.42 × 99 =
34. 34.598 × 999 =
35. 35.61 × 99 =
36. 36.253 × 9 =
37. 37.29029 × 999 =
38. 38.176 × 9 =
39. 39.19 × 99 =
40. 40.88 × 99 =

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