Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 223 · 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. 1.187 × 9 =
2. 2.23 × 99 =
3. 3.515 × 999 =
4. 4.8 × 9 =
5. 5.2126 × 99 =
6. 6.3 × 9 =
7. 7.1749 × 99 =
8. 8.88 × 99 =
9. 9.267 × 999 =
10. 10.213 × 9 =
11. 11.7 × 9 =
12. 12.335 × 999 =
13. 13.429 × 999 =
14. 14.18 × 99 =
15. 15.42 × 99 =
16. 16.18661 × 999 =
17. 17.98 × 99 =
18. 18.3 × 9 =
19. 19.13255 × 999 =
20. 20.186 × 9 =
21. 21.3 × 9 =
22. 22.7 × 9 =
23. 23.27 × 99 =
24. 24.4 × 9 =
25. 25.59 × 99 =
26. 26.159 × 99 =
27. 27.48 × 99 =
28. 28.52 × 9 =
29. 29.13754 × 999 =
30. 30.709 × 999 =
31. 31.68 × 99 =
32. 32.4 × 9 =
33. 33.11 × 99 =
34. 34.385 × 999 =
35. 35.68 × 99 =
36. 36.8 × 9 =
37. 37.69 × 9 =
38. 38.22 × 99 =
39. 39.5784 × 999 =
40. 40.325 × 999 =

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