Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 242 · 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. 2.55 × 99 =
3. 3.5 × 9 =
4. 4.56 × 99 =
5. 5.1788 × 99 =
6. 6.62 × 99 =
7. 7.8901 × 999 =
8. 8.53 × 99 =
9. 9.7 × 9 =
10. 10.73 × 99 =
11. 11.501 × 999 =
12. 12.2 × 9 =
13. 13.86 × 99 =
14. 14.7 × 9 =
15. 15.8 × 9 =
16. 16.355 × 999 =
17. 17.69 × 99 =
18. 18.59 × 999 =
19. 19.112 × 999 =
20. 20.396 × 99 =
21. 21.61 × 9 =
22. 22.16 × 99 =
23. 23.8 × 9 =
24. 24.44 × 99 =
25. 25.962 × 999 =
26. 26.259 × 9 =
27. 27.65 × 99 =
28. 28.4 × 9 =
29. 29.692 × 999 =
30. 30.78 × 99 =
31. 31.13 × 99 =
32. 32.509 × 99 =
33. 33.6 × 9 =
34. 34.8 × 9 =
35. 35.65 × 9 =
36. 36.788 × 999 =
37. 37.7 × 9 =
38. 38.2 × 9 =
39. 39.26 × 99 =
40. 40.61 × 99 =

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