Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 983 · 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. 1.41 × 99 =
2. 2.41 × 9 =
3. 3.523 × 999 =
4. 4.1528 × 99 =
5. 5.6 × 9 =
6. 6.5 × 9 =
7. 7.489 × 999 =
8. 8.16427 × 999 =
9. 9.552 × 999 =
10. 10.258 × 9 =
11. 11.63 × 99 =
12. 12.662 × 999 =
13. 13.29878 × 999 =
14. 14.228 × 9 =
15. 15.289 × 999 =
16. 16.5 × 9 =
17. 17.5 × 9 =
18. 18.1597 × 99 =
19. 19.251 × 999 =
20. 20.65 × 99 =
21. 21.646 × 999 =
22. 22.3 × 9 =
23. 23.2649 × 999 =
24. 24.509 × 999 =
25. 25.255 × 999 =
26. 26.3 × 9 =
27. 27.53 × 99 =
28. 28.97 × 9 =
29. 29.2483 × 99 =
30. 30.39 × 9 =
31. 31.3 × 9 =
32. 32.71 × 99 =
33. 33.521 × 999 =
34. 34.6 × 9 =
35. 35.98 × 99 =
36. 36.7 × 99 =
37. 37.5 × 9 =
38. 38.71 × 99 =
39. 39.39 × 99 =
40. 40.2036 × 999 =

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