Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 578 · 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. 1.2 × 9 =
2. 2.5 × 9 =
3. 3.898 × 999 =
4. 4.357 × 999 =
5. 5.2 × 9 =
6. 6.788 × 999 =
7. 7.16833 × 999 =
8. 8.137 × 9 =
9. 9.706 × 999 =
10. 10.3 × 9 =
11. 11.7 × 9 =
12. 12.69 × 99 =
13. 13.1243 × 99 =
14. 14.13 × 99 =
15. 15.4 × 9 =
16. 16.5 × 9 =
17. 17.3054 × 999 =
18. 18.16 × 9 =
19. 19.501 × 999 =
20. 20.88 × 99 =
21. 21.196 × 999 =
22. 22.478 × 999 =
23. 23.77 × 99 =
24. 24.2169 × 99 =
25. 25.201 × 99 =
26. 26.19035 × 999 =
27. 27.59 × 999 =
28. 28.94 × 99 =
29. 29.67 × 99 =
30. 30.3331 × 999 =
31. 31.247 × 999 =
32. 32.61 × 99 =
33. 33.67 × 99 =
34. 34.63 × 99 =
35. 35.5 × 9 =
36. 36.5 × 9 =
37. 37.185 × 9 =
38. 38.45 × 99 =
39. 39.8 × 9 =
40. 40.515 × 999 =

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