Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 915 · 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. 1.5 × 9 =
2. 2.3 × 9 =
3. 3.7 × 9 =
4. 4.8 × 9 =
5. 5.7 × 9 =
6. 6.2113 × 99 =
7. 7.6 × 9 =
8. 8.448 × 999 =
9. 9.6 × 9 =
10. 10.22 × 99 =
11. 11.17 × 99 =
12. 12.68 × 99 =
13. 13.411 × 999 =
14. 14.29216 × 999 =
15. 15.188 × 99 =
16. 16.3 × 99 =
17. 17.4778 × 999 =
18. 18.4 × 9 =
19. 19.63 × 99 =
20. 20.29 × 99 =
21. 21.528 × 999 =
22. 22.91 × 99 =
23. 23.95 × 99 =
24. 24.789 × 999 =
25. 25.2 × 9 =
26. 26.171 × 9 =
27. 27.72 × 99 =
28. 28.87 × 9 =
29. 29.6 × 9 =
30. 30.144 × 9 =
31. 31.26 × 99 =
32. 32.8 × 9 =
33. 33.367 × 999 =
34. 34.4 × 9 =
35. 35.6 × 9 =
36. 36.973 × 999 =
37. 37.3907 × 999 =
38. 38.8 × 9 =
39. 39.64 × 99 =
40. 40.998 × 999 =

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