Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 375 · 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. 1.531 × 99 =
2. 2.5 × 9 =
3. 3.39 × 99 =
4. 4.754 × 99 =
5. 5.406 × 99 =
6. 6.54 × 999 =
7. 7.4 × 9 =
8. 8.827 × 999 =
9. 9.666 × 999 =
10. 10.42 × 99 =
11. 11.5464 × 999 =
12. 12.81 × 99 =
13. 13.231 × 999 =
14. 14.2 × 9 =
15. 15.65 × 99 =
16. 16.7 × 9 =
17. 17.9 × 99 =
18. 18.27066 × 999 =
19. 19.611 × 999 =
20. 20.1402 × 99 =
21. 21.72 × 99 =
22. 22.3 × 9 =
23. 23.174 × 999 =
24. 24.4 × 99 =
25. 25.2 × 9 =
26. 26.6149 × 999 =
27. 27.9 × 999 =
28. 28.1831 × 99 =
29. 29.39 × 99 =
30. 30.53 × 9 =
31. 31.23 × 99 =
32. 32.7 × 9 =
33. 33.301 × 999 =
34. 34.69 × 999 =
35. 35.8 × 99 =
36. 36.7 × 9 =
37. 37.251 × 999 =
38. 38.95 × 99 =
39. 39.27 × 9 =
40. 40.5 × 9 =

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