Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 586 · 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. 1.62 × 9 =
2. 2.8 × 9 =
3. 3.59 × 99 =
4. 4.7 × 9 =
5. 5.2934 × 99 =
6. 6.2217 × 99 =
7. 7.432 × 999 =
8. 8.26665 × 999 =
9. 9.75 × 99 =
10. 10.5 × 9 =
11. 11.1579 × 99 =
12. 12.51 × 99 =
13. 13.84 × 9 =
14. 14.25 × 99 =
15. 15.21645 × 999 =
16. 16.96 × 99 =
17. 17.45 × 99 =
18. 18.3 × 9 =
19. 19.102 × 99 =
20. 20.76 × 99 =
21. 21.25187 × 999 =
22. 22.96 × 99 =
23. 23.73 × 99 =
24. 24.11 × 99 =
25. 25.1256 × 99 =
26. 26.54 × 9 =
27. 27.154 × 999 =
28. 28.7 × 99 =
29. 29.2 × 9 =
30. 30.27855 × 999 =
31. 31.2 × 9 =
32. 32.2663 × 99 =
33. 33.69 × 99 =
34. 34.632 × 999 =
35. 35.2827 × 99 =
36. 36.6967 × 999 =
37. 37.8 × 9 =
38. 38.5 × 9 =
39. 39.7 × 9 =
40. 40.2921 × 99 =

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