Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 974 · 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. 1.85 × 99 =
2. 2.51 × 99 =
3. 3.45 × 9 =
4. 4.21932 × 999 =
5. 5.253 × 999 =
6. 6.64 × 9 =
7. 7.97 × 99 =
8. 8.6 × 9 =
9. 9.17 × 99 =
10. 10.15 × 99 =
11. 11.8 × 9 =
12. 12.3 × 9 =
13. 13.179 × 9 =
14. 14.91 × 9 =
15. 15.24 × 99 =
16. 16.11 × 9 =
17. 17.2 × 99 =
18. 18.175 × 9 =
19. 19.195 × 9 =
20. 20.17 × 99 =
21. 21.84 × 99 =
22. 22.475 × 99 =
23. 23.3 × 9 =
24. 24.112 × 9 =
25. 25.46 × 9 =
26. 26.4 × 99 =
27. 27.78 × 99 =
28. 28.7 × 9 =
29. 29.17725 × 999 =
30. 30.26639 × 999 =
31. 31.2077 × 99 =
32. 32.8 × 9 =
33. 33.579 × 999 =
34. 34.2 × 9 =
35. 35.6 × 9 =
36. 36.571 × 999 =
37. 37.144 × 9 =
38. 38.388 × 999 =
39. 39.33 × 99 =
40. 40.273 × 999 =

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