Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 228 · 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. 2.1637 × 99 =
3. 3.377 × 999 =
4. 4.6 × 9 =
5. 5.4 × 9 =
6. 6.161 × 999 =
7. 7.203 × 9 =
8. 8.5 × 9 =
9. 9.26 × 99 =
10. 10.746 × 999 =
11. 11.2 × 9 =
12. 12.1726 × 99 =
13. 13.428 × 999 =
14. 14.7 × 9 =
15. 15.3 × 9 =
16. 16.26 × 99 =
17. 17.16 × 99 =
18. 18.72 × 99 =
19. 19.28 × 99 =
20. 20.7 × 99 =
21. 21.11 × 99 =
22. 22.883 × 999 =
23. 23.4 × 9 =
24. 24.14 × 99 =
25. 25.906 × 99 =
26. 26.34 × 99 =
27. 27.681 × 999 =
28. 28.94 × 9 =
29. 29.86 × 99 =
30. 30.181 × 99 =
31. 31.7 × 9 =
32. 32.9 × 99 =
33. 33.41 × 99 =
34. 34.95 × 99 =
35. 35.58 × 99 =
36. 36.8 × 9 =
37. 37.41 × 99 =
38. 38.2 × 9 =
39. 39.1051 × 99 =
40. 40.22715 × 999 =

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