Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 597 · 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. 1.385 × 999 =
2. 2.22066 × 999 =
3. 3.7 × 9 =
4. 4.14552 × 999 =
5. 5.8 × 9 =
6. 6.628 × 99 =
7. 7.2522 × 99 =
8. 8.14691 × 999 =
9. 9.221 × 9 =
10. 10.2 × 9 =
11. 11.32 × 99 =
12. 12.83 × 999 =
13. 13.3 × 99 =
14. 14.167 × 9 =
15. 15.35 × 99 =
16. 16.53 × 99 =
17. 17.6 × 9 =
18. 18.187 × 999 =
19. 19.6 × 99 =
20. 20.3 × 99 =
21. 21.236 × 9 =
22. 22.45 × 99 =
23. 23.3 × 99 =
24. 24.21319 × 999 =
25. 25.4 × 9 =
26. 26.27601 × 999 =
27. 27.25177 × 999 =
28. 28.27 × 99 =
29. 29.2075 × 99 =
30. 30.3 × 9 =
31. 31.6 × 9 =
32. 32.537 × 999 =
33. 33.793 × 999 =
34. 34.15735 × 999 =
35. 35.91 × 99 =
36. 36.167 × 9 =
37. 37.126 × 999 =
38. 38.144 × 9 =
39. 39.91 × 99 =
40. 40.2 × 9 =

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