Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 893 · 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. 1.6 × 9 =
2. 2.928 × 999 =
3. 3.149 × 9 =
4. 4.214 × 9 =
5. 5.3 × 9 =
6. 6.7 × 9 =
7. 7.31 × 99 =
8. 8.7 × 9 =
9. 9.1619 × 99 =
10. 10.5 × 9 =
11. 11.2 × 9 =
12. 12.8 × 9 =
13. 13.5 × 9 =
14. 14.68 × 9 =
15. 15.246 × 9 =
16. 16.7 × 9 =
17. 17.21 × 99 =
18. 18.16 × 99 =
19. 19.6 × 9 =
20. 20.5 × 9 =
21. 21.686 × 999 =
22. 22.19 × 99 =
23. 23.48 × 99 =
24. 24.7 × 99 =
25. 25.7 × 99 =
26. 26.2 × 9 =
27. 27.526 × 999 =
28. 28.17938 × 999 =
29. 29.962 × 99 =
30. 30.91 × 99 =
31. 31.961 × 99 =
32. 32.4 × 9 =
33. 33.161 × 999 =
34. 34.43 × 99 =
35. 35.148 × 9 =
36. 36.15 × 99 =
37. 37.72 × 9 =
38. 38.767 × 999 =
39. 39.88 × 999 =
40. 40.6 × 9 =

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