Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 84 · 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. 1.3 × 9 =
2. 2.20942 × 999 =
3. 3.2 × 9 =
4. 4.81 × 99 =
5. 5.5 × 99 =
6. 6.7 × 9 =
7. 7.21 × 99 =
8. 8.21 × 99 =
9. 9.539 × 999 =
10. 10.5 × 99 =
11. 11.107 × 9 =
12. 12.8 × 9 =
13. 13.81 × 99 =
14. 14.908 × 999 =
15. 15.7 × 99 =
16. 16.77 × 9 =
17. 17.55 × 99 =
18. 18.8 × 9 =
19. 19.21522 × 999 =
20. 20.37 × 99 =
21. 21.236 × 9 =
22. 22.6 × 9 =
23. 23.981 × 999 =
24. 24.185 × 9 =
25. 25.237 × 999 =
26. 26.4058 × 999 =
27. 27.5 × 9 =
28. 28.34 × 99 =
29. 29.133 × 9 =
30. 30.23 × 99 =
31. 31.2 × 9 =
32. 32.7 × 9 =
33. 33.674 × 99 =
34. 34.72 × 99 =
35. 35.416 × 99 =
36. 36.16896 × 999 =
37. 37.38 × 9 =
38. 38.6884 × 999 =
39. 39.147 × 9 =
40. 40.178 × 999 =

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