Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 562 · 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. 1.242 × 999 =
2. 2.91 × 99 =
3. 3.261 × 9 =
4. 4.98 × 99 =
5. 5.53 × 99 =
6. 6.45 × 99 =
7. 7.102 × 999 =
8. 8.14371 × 999 =
9. 9.2128 × 99 =
10. 10.25422 × 999 =
11. 11.122 × 9 =
12. 12.7 × 9 =
13. 13.7 × 9 =
14. 14.136 × 9 =
15. 15.2141 × 99 =
16. 16.636 × 999 =
17. 17.8 × 9 =
18. 18.6 × 9 =
19. 19.48 × 99 =
20. 20.195 × 9 =
21. 21.2 × 9 =
22. 22.4 × 9 =
23. 23.9 × 99 =
24. 24.991 × 999 =
25. 25.4 × 9 =
26. 26.91 × 99 =
27. 27.23693 × 999 =
28. 28.4 × 9 =
29. 29.8 × 9 =
30. 30.8 × 9 =
31. 31.6 × 9 =
32. 32.19 × 99 =
33. 33.4 × 9 =
34. 34.4 × 9 =
35. 35.7 × 9 =
36. 36.499 × 999 =
37. 37.287 × 999 =
38. 38.28 × 99 =
39. 39.92 × 999 =
40. 40.73 × 99 =

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