Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 274 · 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. 1.175 × 999 =
2. 2.284 × 999 =
3. 3.21 × 99 =
4. 4.4 × 9 =
5. 5.6 × 9 =
6. 6.83 × 99 =
7. 7.85 × 99 =
8. 8.57 × 99 =
9. 9.3 × 9 =
10. 10.43 × 99 =
11. 11.2233 × 99 =
12. 12.55 × 99 =
13. 13.4 × 9 =
14. 14.14 × 999 =
15. 15.95 × 9 =
16. 16.8 × 9 =
17. 17.38 × 999 =
18. 18.47 × 99 =
19. 19.8 × 99 =
20. 20.6 × 9 =
21. 21.45 × 9 =
22. 22.94 × 99 =
23. 23.179 × 9 =
24. 24.87 × 99 =
25. 25.5 × 9 =
26. 26.2 × 9 =
27. 27.8 × 9 =
28. 28.35 × 99 =
29. 29.3 × 9 =
30. 30.705 × 999 =
31. 31.4 × 9 =
32. 32.8355 × 999 =
33. 33.73 × 99 =
34. 34.938 × 999 =
35. 35.746 × 999 =
36. 36.898 × 999 =
37. 37.11451 × 999 =
38. 38.932 × 99 =
39. 39.3 × 9 =
40. 40.254 × 9 =

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