Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 62 · 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. 2.155 × 9 =
3. 3.72 × 99 =
4. 4.24 × 9 =
5. 5.186 × 999 =
6. 6.715 × 99 =
7. 7.11 × 99 =
8. 8.2 × 9 =
9. 9.61 × 99 =
10. 10.188 × 999 =
11. 11.341 × 999 =
12. 12.1271 × 99 =
13. 13.7 × 9 =
14. 14.254 × 999 =
15. 15.48 × 99 =
16. 16.15853 × 999 =
17. 17.19265 × 999 =
18. 18.52 × 999 =
19. 19.5 × 9 =
20. 20.11772 × 999 =
21. 21.11 × 99 =
22. 22.28 × 99 =
23. 23.7 × 9 =
24. 24.91 × 99 =
25. 25.5 × 9 =
26. 26.6 × 9 =
27. 27.554 × 999 =
28. 28.8 × 9 =
29. 29.8 × 9 =
30. 30.86 × 99 =
31. 31.1437 × 99 =
32. 32.5 × 9 =
33. 33.745 × 999 =
34. 34.1864 × 99 =
35. 35.741 × 999 =
36. 36.7 × 9 =
37. 37.5 × 9 =
38. 38.4 × 9 =
39. 39.255 × 9 =
40. 40.8 × 9 =

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