Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 896 · 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. 1.61 × 9 =
2. 2.38 × 99 =
3. 3.5 × 9 =
4. 4.28 × 99 =
5. 5.122 × 999 =
6. 6.17096 × 999 =
7. 7.394 × 999 =
8. 8.1671 × 99 =
9. 9.63 × 99 =
10. 10.972 × 999 =
11. 11.57 × 9 =
12. 12.164 × 999 =
13. 13.4 × 9 =
14. 14.38 × 99 =
15. 15.95 × 9 =
16. 16.6584 × 999 =
17. 17.3 × 9 =
18. 18.2 × 9 =
19. 19.2 × 9 =
20. 20.23 × 99 =
21. 21.61 × 99 =
22. 22.22 × 99 =
23. 23.36 × 99 =
24. 24.8 × 9 =
25. 25.228 × 9 =
26. 26.1821 × 99 =
27. 27.25 × 99 =
28. 28.895 × 999 =
29. 29.122 × 999 =
30. 30.87 × 99 =
31. 31.3 × 9 =
32. 32.52 × 9 =
33. 33.28 × 99 =
34. 34.1531 × 99 =
35. 35.349 × 99 =
36. 36.2 × 9 =
37. 37.467 × 99 =
38. 38.3 × 9 =
39. 39.8 × 9 =
40. 40.719 × 999 =

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