Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 220 · 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. 1.8 × 9 =
2. 2.2 × 9 =
3. 3.959 × 999 =
4. 4.4 × 9 =
5. 5.8 × 99 =
6. 6.41 × 99 =
7. 7.19 × 99 =
8. 8.687 × 999 =
9. 9.2 × 9 =
10. 10.183 × 9 =
11. 11.501 × 99 =
12. 12.3 × 9 =
13. 13.86 × 99 =
14. 14.58 × 9 =
15. 15.34 × 99 =
16. 16.31 × 99 =
17. 17.4 × 9 =
18. 18.43 × 99 =
19. 19.33 × 99 =
20. 20.261 × 9 =
21. 21.2 × 9 =
22. 22.46 × 99 =
23. 23.226 × 99 =
24. 24.791 × 999 =
25. 25.105 × 999 =
26. 26.781 × 999 =
27. 27.32 × 99 =
28. 28.218 × 9 =
29. 29.22211 × 999 =
30. 30.3 × 9 =
31. 31.2 × 9 =
32. 32.9 × 99 =
33. 33.41 × 99 =
34. 34.8 × 9 =
35. 35.31 × 99 =
36. 36.36 × 999 =
37. 37.25 × 99 =
38. 38.17 × 99 =
39. 39.81 × 99 =
40. 40.862 × 999 =

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