Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 606 · 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. 1.7 × 9 =
2. 2.13708 × 999 =
3. 3.25 × 9 =
4. 4.446 × 999 =
5. 5.56 × 99 =
6. 6.251 × 9 =
7. 7.20081 × 999 =
8. 8.64 × 99 =
9. 9.138 × 9 =
10. 10.173 × 9 =
11. 11.98 × 99 =
12. 12.317 × 999 =
13. 13.105 × 9 =
14. 14.4 × 9 =
15. 15.316 × 99 =
16. 16.73 × 99 =
17. 17.7 × 9 =
18. 18.21736 × 999 =
19. 19.5 × 9 =
20. 20.64 × 99 =
21. 21.585 × 999 =
22. 22.3 × 9 =
23. 23.87 × 99 =
24. 24.82 × 9 =
25. 25.266 × 9 =
26. 26.3 × 9 =
27. 27.74 × 99 =
28. 28.14 × 99 =
29. 29.13 × 99 =
30. 30.14254 × 999 =
31. 31.5705 × 999 =
32. 32.45 × 99 =
33. 33.5 × 9 =
34. 34.93 × 99 =
35. 35.2635 × 99 =
36. 36.2 × 9 =
37. 37.11 × 99 =
38. 38.2042 × 99 =
39. 39.3 × 99 =
40. 40.174 × 99 =

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