Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 426 · 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. 2.76 × 99 =
3. 3.8 × 9 =
4. 4.11 × 99 =
5. 5.4 × 9 =
6. 6.4 × 9 =
7. 7.24725 × 999 =
8. 8.3 × 99 =
9. 9.61 × 9 =
10. 10.71 × 99 =
11. 11.24 × 99 =
12. 12.8 × 9 =
13. 13.31 × 99 =
14. 14.561 × 999 =
15. 15.35 × 99 =
16. 16.2 × 9 =
17. 17.2 × 9 =
18. 18.6 × 9 =
19. 19.943 × 999 =
20. 20.71 × 99 =
21. 21.12 × 99 =
22. 22.4 × 9 =
23. 23.2 × 9 =
24. 24.375 × 999 =
25. 25.8 × 9 =
26. 26.29 × 99 =
27. 27.229 × 999 =
28. 28.23 × 9 =
29. 29.1936 × 99 =
30. 30.5 × 9 =
31. 31.561 × 999 =
32. 32.2 × 9 =
33. 33.25765 × 999 =
34. 34.2 × 9 =
35. 35.351 × 999 =
36. 36.94 × 99 =
37. 37.1286 × 99 =
38. 38.1356 × 99 =
39. 39.42 × 99 =
40. 40.486 × 99 =

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