Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 503 · 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. 1.1296 × 99 =
2. 2.5 × 9 =
3. 3.8 × 9 =
4. 4.2339 × 99 =
5. 5.25 × 99 =
6. 6.58 × 99 =
7. 7.18222 × 999 =
8. 8.35 × 999 =
9. 9.1618 × 999 =
10. 10.45 × 99 =
11. 11.7 × 99 =
12. 12.4 × 9 =
13. 13.61 × 99 =
14. 14.314 × 999 =
15. 15.32 × 999 =
16. 16.16882 × 999 =
17. 17.3 × 9 =
18. 18.7962 × 999 =
19. 19.71 × 99 =
20. 20.2123 × 99 =
21. 21.53 × 99 =
22. 22.12149 × 999 =
23. 23.907 × 999 =
24. 24.767 × 999 =
25. 25.5 × 9 =
26. 26.91 × 99 =
27. 27.367 × 999 =
28. 28.238 × 9 =
29. 29.895 × 999 =
30. 30.393 × 999 =
31. 31.127 × 999 =
32. 32.217 × 9 =
33. 33.6 × 99 =
34. 34.5 × 9 =
35. 35.136 × 999 =
36. 36.6 × 9 =
37. 37.3 × 9 =
38. 38.86 × 99 =
39. 39.2386 × 99 =
40. 40.7 × 9 =

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