Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 778 · 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. 1.641 × 999 =
2. 2.26 × 99 =
3. 3.394 × 999 =
4. 4.18702 × 999 =
5. 5.3 × 9 =
6. 6.476 × 999 =
7. 7.398 × 999 =
8. 8.812 × 999 =
9. 9.7 × 9 =
10. 10.2 × 9 =
11. 11.28191 × 999 =
12. 12.16 × 99 =
13. 13.79 × 99 =
14. 14.143 × 9 =
15. 15.83 × 99 =
16. 16.95 × 99 =
17. 17.69 × 99 =
18. 18.64 × 99 =
19. 19.5994 × 999 =
20. 20.841 × 999 =
21. 21.76 × 99 =
22. 22.1422 × 99 =
23. 23.25 × 99 =
24. 24.161 × 999 =
25. 25.91 × 99 =
26. 26.21285 × 999 =
27. 27.3 × 9 =
28. 28.2 × 9 =
29. 29.96 × 999 =
30. 30.8 × 9 =
31. 31.579 × 999 =
32. 32.112 × 999 =
33. 33.236 × 9 =
34. 34.79 × 9 =
35. 35.5 × 9 =
36. 36.563 × 999 =
37. 37.8 × 9 =
38. 38.135 × 9 =
39. 39.686 × 999 =
40. 40.991 × 999 =

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