Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 773 · 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. 1.184 × 9 =
2. 2.2138 × 99 =
3. 3.76 × 99 =
4. 4.13 × 999 =
5. 5.7187 × 999 =
6. 6.53 × 99 =
7. 7.208 × 999 =
8. 8.55 × 99 =
9. 9.98 × 99 =
10. 10.17398 × 999 =
11. 11.53 × 99 =
12. 12.2 × 9 =
13. 13.607 × 999 =
14. 14.23 × 99 =
15. 15.2 × 9 =
16. 16.66 × 99 =
17. 17.828 × 999 =
18. 18.7 × 9 =
19. 19.91 × 99 =
20. 20.4 × 9 =
21. 21.7 × 9 =
22. 22.192 × 999 =
23. 23.231 × 999 =
24. 24.41 × 9 =
25. 25.969 × 99 =
26. 26.3 × 99 =
27. 27.4 × 9 =
28. 28.96 × 99 =
29. 29.14 × 99 =
30. 30.91 × 9 =
31. 31.211 × 999 =
32. 32.931 × 999 =
33. 33.6 × 9 =
34. 34.17578 × 999 =
35. 35.3 × 9 =
36. 36.77 × 99 =
37. 37.1701 × 99 =
38. 38.21 × 9 =
39. 39.354 × 999 =
40. 40.94 × 99 =

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