Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 56 · 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. 1.41 × 99 =
2. 2.773 × 999 =
3. 3.42 × 999 =
4. 4.6 × 9 =
5. 5.7 × 9 =
6. 6.854 × 999 =
7. 7.129 × 999 =
8. 8.5 × 99 =
9. 9.2848 × 99 =
10. 10.38 × 99 =
11. 11.362 × 99 =
12. 12.5 × 9 =
13. 13.755 × 999 =
14. 14.71 × 99 =
15. 15.352 × 999 =
16. 16.31 × 99 =
17. 17.131 × 999 =
18. 18.8 × 9 =
19. 19.435 × 999 =
20. 20.1052 × 99 =
21. 21.71 × 99 =
22. 22.385 × 99 =
23. 23.3 × 9 =
24. 24.2759 × 99 =
25. 25.491 × 999 =
26. 26.671 × 999 =
27. 27.8 × 99 =
28. 28.8 × 9 =
29. 29.2 × 9 =
30. 30.28247 × 999 =
31. 31.14 × 99 =
32. 32.482 × 999 =
33. 33.282 × 99 =
34. 34.7 × 9 =
35. 35.2 × 9 =
36. 36.4111 × 999 =
37. 37.2496 × 99 =
38. 38.2 × 9 =
39. 39.3 × 9 =
40. 40.46 × 99 =

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