Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 622 · 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. 1.81 × 99 =
2. 2.2 × 9 =
3. 3.937 × 999 =
4. 4.541 × 999 =
5. 5.2 × 9 =
6. 6.561 × 999 =
7. 7.8 × 9 =
8. 8.5 × 9 =
9. 9.6 × 9 =
10. 10.58 × 99 =
11. 11.361 × 999 =
12. 12.82 × 99 =
13. 13.2933 × 99 =
14. 14.6 × 9 =
15. 15.8 × 9 =
16. 16.486 × 999 =
17. 17.792 × 999 =
18. 18.453 × 999 =
19. 19.16 × 9 =
20. 20.205 × 9 =
21. 21.6 × 9 =
22. 22.22 × 99 =
23. 23.52 × 99 =
24. 24.296 × 999 =
25. 25.7 × 9 =
26. 26.613 × 999 =
27. 27.195 × 9 =
28. 28.18557 × 999 =
29. 29.2421 × 99 =
30. 30.501 × 999 =
31. 31.58 × 99 =
32. 32.7 × 99 =
33. 33.7 × 9 =
34. 34.55 × 9 =
35. 35.12 × 9 =
36. 36.4 × 9 =
37. 37.493 × 999 =
38. 38.8 × 9 =
39. 39.537 × 99 =
40. 40.6 × 9 =

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