Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 780 · 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. 1.4 × 9 =
2. 2.61 × 99 =
3. 3.83 × 99 =
4. 4.14 × 9 =
5. 5.64 × 99 =
6. 6.2334 × 99 =
7. 7.63 × 99 =
8. 8.16 × 99 =
9. 9.6 × 9 =
10. 10.64 × 99 =
11. 11.834 × 999 =
12. 12.1594 × 999 =
13. 13.496 × 999 =
14. 14.4 × 9 =
15. 15.28 × 99 =
16. 16.1256 × 99 =
17. 17.52 × 99 =
18. 18.26089 × 999 =
19. 19.65 × 99 =
20. 20.7 × 9 =
21. 21.41 × 99 =
22. 22.241 × 999 =
23. 23.2481 × 99 =
24. 24.753 × 999 =
25. 25.232 × 999 =
26. 26.2 × 99 =
27. 27.4 × 9 =
28. 28.3 × 99 =
29. 29.3 × 9 =
30. 30.68 × 99 =
31. 31.306 × 999 =
32. 32.535 × 999 =
33. 33.2 × 9 =
34. 34.501 × 999 =
35. 35.6 × 9 =
36. 36.177 × 999 =
37. 37.18313 × 999 =
38. 38.3 × 9 =
39. 39.51 × 99 =
40. 40.21 × 99 =

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