Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 685 · 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. 2.824 × 999 =
3. 3.134 × 9 =
4. 4.27 × 99 =
5. 5.267 × 999 =
6. 6.191 × 9 =
7. 7.608 × 99 =
8. 8.5 × 99 =
9. 9.5091 × 999 =
10. 10.469 × 99 =
11. 11.758 × 999 =
12. 12.2059 × 99 =
13. 13.851 × 999 =
14. 14.123 × 999 =
15. 15.51 × 99 =
16. 16.199 × 999 =
17. 17.6 × 9 =
18. 18.523 × 999 =
19. 19.269 × 9 =
20. 20.26 × 99 =
21. 21.12 × 99 =
22. 22.441 × 99 =
23. 23.2 × 9 =
24. 24.86 × 99 =
25. 25.193 × 999 =
26. 26.959 × 99 =
27. 27.238 × 9 =
28. 28.517 × 99 =
29. 29.5 × 9 =
30. 30.951 × 999 =
31. 31.11 × 99 =
32. 32.21 × 99 =
33. 33.244 × 9 =
34. 34.3 × 9 =
35. 35.6 × 99 =
36. 36.4 × 9 =
37. 37.93 × 9 =
38. 38.3 × 9 =
39. 39.4 × 9 =
40. 40.8156 × 999 =

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