Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 185 · 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. 1.9 × 99 =
2. 2.53 × 99 =
3. 3.3578 × 999 =
4. 4.76 × 99 =
5. 5.7 × 9 =
6. 6.4 × 9 =
7. 7.46 × 9 =
8. 8.6 × 9 =
9. 9.1141 × 99 =
10. 10.7 × 9 =
11. 11.44 × 99 =
12. 12.79 × 99 =
13. 13.8 × 9 =
14. 14.8 × 9 =
15. 15.943 × 999 =
16. 16.21 × 99 =
17. 17.115 × 999 =
18. 18.5 × 99 =
19. 19.8 × 9 =
20. 20.66 × 9 =
21. 21.324 × 999 =
22. 22.215 × 9 =
23. 23.592 × 999 =
24. 24.421 × 999 =
25. 25.1584 × 99 =
26. 26.243 × 999 =
27. 27.5 × 9 =
28. 28.5 × 9 =
29. 29.2 × 9 =
30. 30.2398 × 99 =
31. 31.4 × 9 =
32. 32.75 × 99 =
33. 33.62 × 99 =
34. 34.26 × 99 =
35. 35.895 × 999 =
36. 36.11 × 999 =
37. 37.5 × 9 =
38. 38.95 × 99 =
39. 39.74 × 99 =
40. 40.2192 × 99 =

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