Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 468 · 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. 1.31 × 99 =
2. 2.6 × 9 =
3. 3.3 × 9 =
4. 4.73 × 99 =
5. 5.205 × 9 =
6. 6.1152 × 99 =
7. 7.502 × 999 =
8. 8.1765 × 99 =
9. 9.324 × 999 =
10. 10.69 × 99 =
11. 11.4 × 9 =
12. 12.7 × 99 =
13. 13.6 × 9 =
14. 14.591 × 99 =
15. 15.89 × 99 =
16. 16.21 × 99 =
17. 17.54 × 99 =
18. 18.243 × 999 =
19. 19.4 × 9 =
20. 20.4 × 9 =
21. 21.244 × 9 =
22. 22.41 × 999 =
23. 23.51 × 99 =
24. 24.73 × 99 =
25. 25.7 × 9 =
26. 26.95 × 99 =
27. 27.83 × 99 =
28. 28.798 × 999 =
29. 29.74 × 99 =
30. 30.401 × 999 =
31. 31.3 × 9 =
32. 32.2 × 9 =
33. 33.32 × 99 =
34. 34.955 × 999 =
35. 35.3 × 99 =
36. 36.472 × 999 =
37. 37.249 × 999 =
38. 38.93 × 99 =
39. 39.7 × 9 =
40. 40.55 × 99 =

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