Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 840 · 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. 1.3 × 9 =
2. 2.8 × 9 =
3. 3.7 × 99 =
4. 4.1286 × 99 =
5. 5.72 × 99 =
6. 6.4 × 9 =
7. 7.67 × 99 =
8. 8.114 × 9 =
9. 9.3 × 9 =
10. 10.71 × 99 =
11. 11.233 × 999 =
12. 12.57 × 99 =
13. 13.47 × 999 =
14. 14.203 × 999 =
15. 15.6 × 9 =
16. 16.266 × 9 =
17. 17.78 × 99 =
18. 18.927 × 999 =
19. 19.53 × 99 =
20. 20.96 × 99 =
21. 21.13665 × 999 =
22. 22.5 × 9 =
23. 23.28 × 999 =
24. 24.2 × 99 =
25. 25.2 × 9 =
26. 26.51 × 999 =
27. 27.41 × 99 =
28. 28.2878 × 99 =
29. 29.4 × 9 =
30. 30.254 × 9 =
31. 31.228 × 999 =
32. 32.42 × 99 =
33. 33.2343 × 99 =
34. 34.272 × 999 =
35. 35.22345 × 999 =
36. 36.335 × 999 =
37. 37.7 × 9 =
38. 38.4 × 9 =
39. 39.86 × 99 =
40. 40.24 × 99 =

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