Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 102 · 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. 1.311 × 999 =
2. 2.8 × 99 =
3. 3.784 × 999 =
4. 4.403 × 999 =
5. 5.199 × 999 =
6. 6.496 × 999 =
7. 7.5 × 9 =
8. 8.58 × 99 =
9. 9.75 × 99 =
10. 10.1399 × 99 =
11. 11.46 × 99 =
12. 12.161 × 999 =
13. 13.1111 × 99 =
14. 14.38 × 9 =
15. 15.37 × 999 =
16. 16.161 × 9 =
17. 17.227 × 9 =
18. 18.95 × 99 =
19. 19.2 × 9 =
20. 20.453 × 999 =
21. 21.349 × 999 =
22. 22.48 × 99 =
23. 23.117 × 9 =
24. 24.64 × 99 =
25. 25.8 × 9 =
26. 26.48 × 99 =
27. 27.6 × 9 =
28. 28.68 × 99 =
29. 29.237 × 999 =
30. 30.56 × 99 =
31. 31.6 × 9 =
32. 32.94 × 99 =
33. 33.785 × 999 =
34. 34.7 × 9 =
35. 35.3 × 9 =
36. 36.399 × 99 =
37. 37.202 × 999 =
38. 38.1462 × 99 =
39. 39.189 × 999 =
40. 40.113 × 9 =

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