Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 947 · 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. 2.198 × 9 =
3. 3.5 × 9 =
4. 4.684 × 999 =
5. 5.164 × 9 =
6. 6.935 × 999 =
7. 7.19576 × 999 =
8. 8.2045 × 999 =
9. 9.411 × 999 =
10. 10.48 × 99 =
11. 11.2 × 9 =
12. 12.26 × 99 =
13. 13.6 × 9 =
14. 14.85 × 99 =
15. 15.41 × 99 =
16. 16.21 × 99 =
17. 17.8 × 9 =
18. 18.8 × 99 =
19. 19.3 × 9 =
20. 20.25 × 99 =
21. 21.228 × 9 =
22. 22.13 × 99 =
23. 23.32 × 9 =
24. 24.3 × 9 =
25. 25.5 × 9 =
26. 26.2 × 9 =
27. 27.43 × 99 =
28. 28.7 × 9 =
29. 29.19 × 9 =
30. 30.4 × 9 =
31. 31.6 × 99 =
32. 32.62 × 99 =
33. 33.322 × 999 =
34. 34.2073 × 99 =
35. 35.64 × 99 =
36. 36.2 × 9 =
37. 37.65 × 99 =
38. 38.459 × 999 =
39. 39.663 × 999 =
40. 40.2934 × 99 =

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