Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 541 · 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. 1.4867 × 999 =
2. 2.582 × 99 =
3. 3.7 × 99 =
4. 4.79 × 99 =
5. 5.588 × 999 =
6. 6.48 × 99 =
7. 7.239 × 999 =
8. 8.436 × 999 =
9. 9.461 × 999 =
10. 10.4 × 9 =
11. 11.6 × 9 =
12. 12.3 × 9 =
13. 13.3 × 9 =
14. 14.261 × 999 =
15. 15.3 × 9 =
16. 16.39 × 999 =
17. 17.67 × 99 =
18. 18.25 × 99 =
19. 19.4 × 9 =
20. 20.4 × 9 =
21. 21.11292 × 999 =
22. 22.13 × 99 =
23. 23.8813 × 999 =
24. 24.22 × 99 =
25. 25.21103 × 999 =
26. 26.19 × 99 =
27. 27.82 × 99 =
28. 28.494 × 999 =
29. 29.1415 × 99 =
30. 30.21 × 99 =
31. 31.2617 × 99 =
32. 32.518 × 999 =
33. 33.3 × 9 =
34. 34.11 × 99 =
35. 35.213 × 999 =
36. 36.68 × 99 =
37. 37.332 × 999 =
38. 38.2 × 9 =
39. 39.983 × 999 =
40. 40.43 × 99 =

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