Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 196 · 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. 2.177 × 999 =
3. 3.5 × 9 =
4. 4.214 × 999 =
5. 5.4 × 9 =
6. 6.8 × 9 =
7. 7.171 × 9 =
8. 8.21 × 99 =
9. 9.63 × 99 =
10. 10.255 × 99 =
11. 11.4 × 9 =
12. 12.7 × 9 =
13. 13.4 × 9 =
14. 14.26 × 99 =
15. 15.6 × 99 =
16. 16.7 × 9 =
17. 17.356 × 99 =
18. 18.69 × 99 =
19. 19.2269 × 99 =
20. 20.76 × 99 =
21. 21.4 × 9 =
22. 22.59 × 99 =
23. 23.24 × 99 =
24. 24.23 × 99 =
25. 25.196 × 999 =
26. 26.796 × 999 =
27. 27.6 × 99 =
28. 28.87 × 99 =
29. 29.22 × 99 =
30. 30.545 × 999 =
31. 31.27 × 9 =
32. 32.39 × 999 =
33. 33.809 × 99 =
34. 34.1188 × 99 =
35. 35.69 × 9 =
36. 36.167 × 999 =
37. 37.84 × 999 =
38. 38.25 × 99 =
39. 39.41 × 9 =
40. 40.4 × 9 =

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