Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 567 · 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. 1.12 × 9 =
2. 2.161 × 999 =
3. 3.52 × 99 =
4. 4.2 × 9 =
5. 5.1545 × 99 =
6. 6.415 × 99 =
7. 7.839 × 999 =
8. 8.8718 × 999 =
9. 9.12 × 999 =
10. 10.7 × 99 =
11. 11.896 × 999 =
12. 12.639 × 999 =
13. 13.7 × 9 =
14. 14.171 × 999 =
15. 15.21431 × 999 =
16. 16.2 × 9 =
17. 17.358 × 999 =
18. 18.327 × 99 =
19. 19.36 × 99 =
20. 20.41 × 99 =
21. 21.3 × 9 =
22. 22.4 × 9 =
23. 23.5 × 9 =
24. 24.7 × 9 =
25. 25.172 × 9 =
26. 26.15 × 99 =
27. 27.2 × 9 =
28. 28.119 × 9 =
29. 29.19 × 99 =
30. 30.3258 × 999 =
31. 31.491 × 99 =
32. 32.906 × 999 =
33. 33.6 × 9 =
34. 34.709 × 999 =
35. 35.12 × 99 =
36. 36.25 × 99 =
37. 37.661 × 99 =
38. 38.754 × 999 =
39. 39.152 × 9 =
40. 40.26007 × 999 =

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