Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 616 · 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. 1.226 × 9 =
2. 2.109 × 9 =
3. 3.16102 × 999 =
4. 4.643 × 999 =
5. 5.46 × 99 =
6. 6.301 × 99 =
7. 7.7 × 9 =
8. 8.61 × 99 =
9. 9.68 × 99 =
10. 10.7 × 9 =
11. 11.2 × 9 =
12. 12.6 × 9 =
13. 13.2 × 9 =
14. 14.3 × 9 =
15. 15.5 × 9 =
16. 16.3 × 9 =
17. 17.882 × 99 =
18. 18.2776 × 99 =
19. 19.9 × 99 =
20. 20.5 × 9 =
21. 21.2 × 9 =
22. 22.151 × 999 =
23. 23.465 × 999 =
24. 24.3 × 9 =
25. 25.6 × 9 =
26. 26.2 × 9 =
27. 27.45 × 99 =
28. 28.3 × 99 =
29. 29.52 × 99 =
30. 30.21 × 99 =
31. 31.68 × 99 =
32. 32.69 × 99 =
33. 33.4 × 9 =
34. 34.8 × 9 =
35. 35.339 × 999 =
36. 36.581 × 999 =
37. 37.1467 × 99 =
38. 38.54 × 99 =
39. 39.111 × 999 =
40. 40.3 × 9 =

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