Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 243 · 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. 1.7 × 9 =
2. 2.117 × 9 =
3. 3.815 × 999 =
4. 4.29 × 99 =
5. 5.24 × 999 =
6. 6.45 × 99 =
7. 7.22 × 99 =
8. 8.2901 × 99 =
9. 9.927 × 999 =
10. 10.4 × 9 =
11. 11.2521 × 99 =
12. 12.766 × 999 =
13. 13.28534 × 999 =
14. 14.1416 × 99 =
15. 15.32 × 99 =
16. 16.9754 × 999 =
17. 17.6 × 9 =
18. 18.7 × 9 =
19. 19.931 × 999 =
20. 20.719 × 999 =
21. 21.6 × 9 =
22. 22.8 × 9 =
23. 23.261 × 999 =
24. 24.2025 × 99 =
25. 25.89 × 99 =
26. 26.5 × 9 =
27. 27.248 × 999 =
28. 28.1631 × 99 =
29. 29.5052 × 999 =
30. 30.941 × 999 =
31. 31.1193 × 99 =
32. 32.3 × 9 =
33. 33.3 × 9 =
34. 34.96 × 99 =
35. 35.932 × 999 =
36. 36.52 × 99 =
37. 37.5 × 9 =
38. 38.7 × 9 =
39. 39.4 × 9 =
40. 40.1663 × 99 =

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