Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 712 · 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. 1.3 × 9 =
2. 2.31 × 99 =
3. 3.3411 × 999 =
4. 4.5 × 9 =
5. 5.7 × 999 =
6. 6.66 × 99 =
7. 7.772 × 999 =
8. 8.64 × 99 =
9. 9.841 × 999 =
10. 10.81 × 99 =
11. 11.2651 × 99 =
12. 12.4375 × 999 =
13. 13.3 × 9 =
14. 14.6 × 9 =
15. 15.3 × 9 =
16. 16.271 × 99 =
17. 17.53 × 999 =
18. 18.2482 × 99 =
19. 19.39 × 99 =
20. 20.1527 × 99 =
21. 21.3097 × 999 =
22. 22.5 × 9 =
23. 23.788 × 999 =
24. 24.64 × 99 =
25. 25.441 × 99 =
26. 26.81 × 99 =
27. 27.31 × 99 =
28. 28.345 × 999 =
29. 29.6 × 9 =
30. 30.351 × 999 =
31. 31.248 × 999 =
32. 32.11 × 99 =
33. 33.88 × 99 =
34. 34.342 × 999 =
35. 35.877 × 999 =
36. 36.21 × 99 =
37. 37.54 × 99 =
38. 38.231 × 9 =
39. 39.33 × 99 =
40. 40.593 × 99 =

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