Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 371 · 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. 2.6 × 9 =
3. 3.4 × 9 =
4. 4.706 × 999 =
5. 5.837 × 999 =
6. 6.85 × 99 =
7. 7.127 × 9 =
8. 8.503 × 999 =
9. 9.2798 × 99 =
10. 10.71 × 99 =
11. 11.10013 × 999 =
12. 12.2 × 99 =
13. 13.21 × 99 =
14. 14.51 × 99 =
15. 15.91 × 99 =
16. 16.286 × 99 =
17. 17.6 × 9 =
18. 18.2 × 9 =
19. 19.531 × 999 =
20. 20.2701 × 99 =
21. 21.1276 × 99 =
22. 22.6 × 9 =
23. 23.175 × 999 =
24. 24.5 × 9 =
25. 25.3 × 9 =
26. 26.4 × 9 =
27. 27.935 × 999 =
28. 28.93 × 99 =
29. 29.724 × 999 =
30. 30.1654 × 999 =
31. 31.2793 × 99 =
32. 32.7 × 9 =
33. 33.2095 × 99 =
34. 34.122 × 9 =
35. 35.244 × 99 =
36. 36.45 × 99 =
37. 37.11 × 9 =
38. 38.384 × 99 =
39. 39.16 × 99 =
40. 40.2 × 9 =

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