Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 621 · 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. 1.74 × 99 =
2. 2.6 × 9 =
3. 3.42 × 99 =
4. 4.3 × 9 =
5. 5.1636 × 99 =
6. 6.307 × 999 =
7. 7.34 × 99 =
8. 8.2189 × 99 =
9. 9.7 × 99 =
10. 10.91 × 99 =
11. 11.256 × 9 =
12. 12.2 × 9 =
13. 13.291 × 999 =
14. 14.3 × 9 =
15. 15.907 × 99 =
16. 16.76 × 99 =
17. 17.27489 × 999 =
18. 18.944 × 999 =
19. 19.703 × 999 =
20. 20.62 × 99 =
21. 21.7 × 9 =
22. 22.41 × 9 =
23. 23.522 × 999 =
24. 24.9 × 99 =
25. 25.998 × 999 =
26. 26.521 × 999 =
27. 27.981 × 999 =
28. 28.93 × 99 =
29. 29.11 × 99 =
30. 30.2 × 9 =
31. 31.591 × 999 =
32. 32.3 × 9 =
33. 33.186 × 9 =
34. 34.2462 × 99 =
35. 35.297 × 99 =
36. 36.2 × 9 =
37. 37.811 × 999 =
38. 38.4 × 9 =
39. 39.97 × 99 =
40. 40.586 × 999 =

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