Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 557 · 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. 1.2 × 9 =
2. 2.12 × 9 =
3. 3.231 × 999 =
4. 4.4 × 9 =
5. 5.246 × 9 =
6. 6.455 × 999 =
7. 7.662 × 999 =
8. 8.8 × 9 =
9. 9.25077 × 999 =
10. 10.14 × 99 =
11. 11.76 × 99 =
12. 12.779 × 99 =
13. 13.41 × 99 =
14. 14.41 × 99 =
15. 15.5 × 9 =
16. 16.749 × 999 =
17. 17.3 × 9 =
18. 18.177 × 999 =
19. 19.86 × 99 =
20. 20.129 × 99 =
21. 21.2 × 9 =
22. 22.7 × 9 =
23. 23.26 × 99 =
24. 24.132 × 9 =
25. 25.9513 × 999 =
26. 26.19 × 99 =
27. 27.5 × 9 =
28. 28.8 × 9 =
29. 29.854 × 999 =
30. 30.96 × 99 =
31. 31.5 × 9 =
32. 32.56 × 99 =
33. 33.836 × 99 =
34. 34.2081 × 99 =
35. 35.4 × 9 =
36. 36.311 × 99 =
37. 37.55 × 99 =
38. 38.1821 × 99 =
39. 39.1925 × 999 =
40. 40.674 × 999 =

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