Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 850 · 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. 1.8 × 9 =
2. 2.659 × 999 =
3. 3.2 × 9 =
4. 4.152 × 999 =
5. 5.2207 × 999 =
6. 6.3 × 9 =
7. 7.15171 × 999 =
8. 8.591 × 999 =
9. 9.12532 × 999 =
10. 10.912 × 999 =
11. 11.81 × 99 =
12. 12.7 × 9 =
13. 13.9854 × 999 =
14. 14.491 × 999 =
15. 15.193 × 99 =
16. 16.5 × 9 =
17. 17.192 × 9 =
18. 18.16 × 9 =
19. 19.19 × 99 =
20. 20.34 × 99 =
21. 21.73 × 99 =
22. 22.193 × 999 =
23. 23.13301 × 999 =
24. 24.1905 × 99 =
25. 25.6 × 9 =
26. 26.84 × 99 =
27. 27.666 × 999 =
28. 28.4 × 9 =
29. 29.11 × 99 =
30. 30.2458 × 99 =
31. 31.5 × 9 =
32. 32.2381 × 99 =
33. 33.489 × 999 =
34. 34.20446 × 999 =
35. 35.1463 × 99 =
36. 36.27 × 99 =
37. 37.5 × 9 =
38. 38.793 × 999 =
39. 39.242 × 9 =
40. 40.8 × 9 =

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