Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 589 · 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. 1.6 × 9 =
2. 2.24 × 999 =
3. 3.172 × 9 =
4. 4.14 × 99 =
5. 5.11 × 99 =
6. 6.5 × 9 =
7. 7.192 × 999 =
8. 8.2493 × 99 =
9. 9.8 × 99 =
10. 10.6 × 9 =
11. 11.532 × 999 =
12. 12.21 × 99 =
13. 13.12 × 99 =
14. 14.29 × 99 =
15. 15.3 × 9 =
16. 16.5845 × 999 =
17. 17.695 × 99 =
18. 18.54 × 99 =
19. 19.2 × 9 =
20. 20.745 × 999 =
21. 21.4 × 9 =
22. 22.904 × 999 =
23. 23.521 × 999 =
24. 24.87 × 99 =
25. 25.36 × 99 =
26. 26.135 × 99 =
27. 27.6 × 9 =
28. 28.2 × 9 =
29. 29.2 × 9 =
30. 30.479 × 999 =
31. 31.214 × 99 =
32. 32.9 × 99 =
33. 33.3 × 9 =
34. 34.447 × 999 =
35. 35.51 × 99 =
36. 36.1749 × 99 =
37. 37.986 × 999 =
38. 38.224 × 9 =
39. 39.996 × 999 =
40. 40.69 × 99 =

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