Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 181 · 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. 1.22 × 99 =
2. 2.6 × 9 =
3. 3.636 × 999 =
4. 4.159 × 999 =
5. 5.6 × 9 =
6. 6.12 × 99 =
7. 7.6 × 9 =
8. 8.784 × 999 =
9. 9.41 × 9 =
10. 10.4 × 9 =
11. 11.5 × 9 =
12. 12.48 × 99 =
13. 13.969 × 999 =
14. 14.495 × 999 =
15. 15.317 × 999 =
16. 16.37 × 99 =
17. 17.118 × 999 =
18. 18.981 × 999 =
19. 19.606 × 999 =
20. 20.858 × 999 =
21. 21.3 × 9 =
22. 22.3 × 9 =
23. 23.5 × 99 =
24. 24.7 × 9 =
25. 25.3 × 9 =
26. 26.3 × 9 =
27. 27.22 × 99 =
28. 28.4 × 9 =
29. 29.41 × 9 =
30. 30.17323 × 999 =
31. 31.1059 × 99 =
32. 32.461 × 999 =
33. 33.91 × 99 =
34. 34.4 × 9 =
35. 35.521 × 999 =
36. 36.921 × 999 =
37. 37.551 × 99 =
38. 38.611 × 999 =
39. 39.2488 × 99 =
40. 40.195 × 999 =

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