Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 155 · 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. 1.13 × 99 =
2. 2.737 × 999 =
3. 3.243 × 999 =
4. 4.125 × 999 =
5. 5.8 × 9 =
6. 6.27 × 99 =
7. 7.3 × 9 =
8. 8.38 × 99 =
9. 9.706 × 999 =
10. 10.682 × 999 =
11. 11.26 × 99 =
12. 12.61 × 9 =
13. 13.566 × 999 =
14. 14.127 × 99 =
15. 15.77 × 99 =
16. 16.2754 × 999 =
17. 17.238 × 999 =
18. 18.668 × 999 =
19. 19.245 × 9 =
20. 20.258 × 999 =
21. 21.58 × 99 =
22. 22.86 × 99 =
23. 23.52 × 99 =
24. 24.2427 × 99 =
25. 25.36 × 9 =
26. 26.52 × 99 =
27. 27.41 × 99 =
28. 28.68 × 99 =
29. 29.818 × 999 =
30. 30.54 × 99 =
31. 31.68 × 99 =
32. 32.1019 × 99 =
33. 33.56 × 999 =
34. 34.11 × 99 =
35. 35.145 × 999 =
36. 36.6204 × 999 =
37. 37.5 × 9 =
38. 38.81 × 99 =
39. 39.2 × 9 =
40. 40.21 × 9 =

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