Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 473 · 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. 1.58 × 999 =
2. 2.4 × 9 =
3. 3.7 × 9 =
4. 4.3 × 9 =
5. 5.3 × 9 =
6. 6.44 × 99 =
7. 7.8 × 9 =
8. 8.15403 × 999 =
9. 9.21 × 99 =
10. 10.4 × 99 =
11. 11.52 × 99 =
12. 12.51 × 99 =
13. 13.7 × 9 =
14. 14.4 × 9 =
15. 15.284 × 999 =
16. 16.4 × 99 =
17. 17.17 × 99 =
18. 18.769 × 999 =
19. 19.8 × 9 =
20. 20.5424 × 999 =
21. 21.78 × 99 =
22. 22.241 × 999 =
23. 23.83 × 99 =
24. 24.88 × 99 =
25. 25.974 × 999 =
26. 26.486 × 999 =
27. 27.7 × 9 =
28. 28.79 × 99 =
29. 29.2 × 9 =
30. 30.7 × 9 =
31. 31.4 × 9 =
32. 32.22 × 99 =
33. 33.15 × 9 =
34. 34.129 × 9 =
35. 35.4 × 9 =
36. 36.71 × 99 =
37. 37.77 × 99 =
38. 38.27062 × 999 =
39. 39.317 × 999 =
40. 40.7 × 9 =

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