Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 561 · 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. 1.5 × 9 =
2. 2.773 × 99 =
3. 3.154 × 9 =
4. 4.245 × 999 =
5. 5.23 × 9 =
6. 6.1011 × 99 =
7. 7.1271 × 99 =
8. 8.127 × 9 =
9. 9.202 × 9 =
10. 10.5 × 9 =
11. 11.2347 × 99 =
12. 12.8582 × 999 =
13. 13.81 × 9 =
14. 14.605 × 99 =
15. 15.3 × 9 =
16. 16.23 × 99 =
17. 17.196 × 9 =
18. 18.2 × 9 =
19. 19.78 × 99 =
20. 20.4 × 9 =
21. 21.4874 × 999 =
22. 22.75 × 99 =
23. 23.2933 × 99 =
24. 24.5 × 9 =
25. 25.4 × 9 =
26. 26.3 × 9 =
27. 27.6 × 9 =
28. 28.18 × 99 =
29. 29.3 × 9 =
30. 30.867 × 999 =
31. 31.8 × 9 =
32. 32.86 × 99 =
33. 33.58 × 99 =
34. 34.2747 × 999 =
35. 35.62 × 9 =
36. 36.111 × 9 =
37. 37.708 × 99 =
38. 38.25 × 9 =
39. 39.3061 × 999 =
40. 40.52 × 999 =

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