Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 836 · 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. 1.1396 × 99 =
2. 2.5 × 9 =
3. 3.87 × 99 =
4. 4.8 × 9 =
5. 5.2 × 99 =
6. 6.82 × 99 =
7. 7.3 × 9 =
8. 8.45 × 9 =
9. 9.25 × 99 =
10. 10.6 × 9 =
11. 11.937 × 999 =
12. 12.44 × 99 =
13. 13.3 × 9 =
14. 14.4 × 9 =
15. 15.2 × 9 =
16. 16.86 × 99 =
17. 17.3 × 9 =
18. 18.4 × 99 =
19. 19.61 × 99 =
20. 20.5 × 9 =
21. 21.237 × 999 =
22. 22.267 × 99 =
23. 23.1748 × 999 =
24. 24.25 × 9 =
25. 25.19 × 99 =
26. 26.23748 × 999 =
27. 27.56 × 9 =
28. 28.49 × 99 =
29. 29.199 × 9 =
30. 30.45 × 99 =
31. 31.8 × 9 =
32. 32.1788 × 99 =
33. 33.94 × 999 =
34. 34.839 × 999 =
35. 35.74 × 99 =
36. 36.6 × 9 =
37. 37.48 × 99 =
38. 38.6 × 9 =
39. 39.5 × 9 =
40. 40.78 × 99 =

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