Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 257 · 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. 1.29 × 99 =
2. 2.2 × 9 =
3. 3.153 × 9 =
4. 4.6 × 9 =
5. 5.11 × 999 =
6. 6.159 × 999 =
7. 7.28878 × 999 =
8. 8.11 × 99 =
9. 9.11 × 99 =
10. 10.69 × 99 =
11. 11.23 × 99 =
12. 12.4 × 9 =
13. 13.5 × 9 =
14. 14.3 × 9 =
15. 15.461 × 999 =
16. 16.17854 × 999 =
17. 17.1595 × 99 =
18. 18.24 × 9 =
19. 19.2 × 9 =
20. 20.14 × 99 =
21. 21.1852 × 99 =
22. 22.43 × 99 =
23. 23.10904 × 999 =
24. 24.216 × 99 =
25. 25.465 × 999 =
26. 26.464 × 999 =
27. 27.5 × 9 =
28. 28.17 × 99 =
29. 29.23 × 99 =
30. 30.73 × 99 =
31. 31.63 × 99 =
32. 32.1124 × 99 =
33. 33.8 × 9 =
34. 34.9 × 99 =
35. 35.12 × 99 =
36. 36.268 × 9 =
37. 37.176 × 999 =
38. 38.469 × 999 =
39. 39.23929 × 999 =
40. 40.21 × 99 =

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