Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 104 · 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. 2.7 × 9 =
3. 3.163 × 9 =
4. 4.21341 × 999 =
5. 5.178 × 99 =
6. 6.181 × 9 =
7. 7.2 × 9 =
8. 8.104 × 999 =
9. 9.21 × 99 =
10. 10.3 × 9 =
11. 11.2 × 9 =
12. 12.52 × 99 =
13. 13.26426 × 999 =
14. 14.418 × 999 =
15. 15.29252 × 999 =
16. 16.776 × 999 =
17. 17.3 × 9 =
18. 18.8 × 9 =
19. 19.38 × 99 =
20. 20.811 × 999 =
21. 21.121 × 9 =
22. 22.46 × 99 =
23. 23.18402 × 999 =
24. 24.429 × 999 =
25. 25.757 × 99 =
26. 26.6 × 9 =
27. 27.7 × 9 =
28. 28.2739 × 99 =
29. 29.751 × 999 =
30. 30.202 × 9 =
31. 31.182 × 9 =
32. 32.3 × 9 =
33. 33.19 × 999 =
34. 34.9 × 99 =
35. 35.14659 × 999 =
36. 36.58 × 99 =
37. 37.2289 × 99 =
38. 38.16 × 99 =
39. 39.2949 × 99 =
40. 40.4739 × 999 =

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