Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 134 · 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. 2.957 × 999 =
3. 3.8 × 99 =
4. 4.81 × 99 =
5. 5.3 × 9 =
6. 6.98 × 9 =
7. 7.22756 × 999 =
8. 8.2035 × 99 =
9. 9.7 × 9 =
10. 10.6 × 9 =
11. 11.451 × 999 =
12. 12.91 × 99 =
13. 13.147 × 999 =
14. 14.15382 × 999 =
15. 15.3 × 9 =
16. 16.38 × 99 =
17. 17.396 × 999 =
18. 18.152 × 9 =
19. 19.584 × 999 =
20. 20.329 × 999 =
21. 21.91 × 9 =
22. 22.7 × 9 =
23. 23.168 × 999 =
24. 24.68 × 99 =
25. 25.2085 × 99 =
26. 26.331 × 99 =
27. 27.2567 × 999 =
28. 28.8 × 9 =
29. 29.913 × 999 =
30. 30.86 × 99 =
31. 31.835 × 999 =
32. 32.6 × 9 =
33. 33.8 × 9 =
34. 34.17595 × 999 =
35. 35.21 × 99 =
36. 36.7 × 9 =
37. 37.2601 × 99 =
38. 38.77 × 99 =
39. 39.4 × 9 =
40. 40.35 × 99 =

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