Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 156 · 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. 1.8 × 99 =
2. 2.2 × 9 =
3. 3.1133 × 99 =
4. 4.13 × 99 =
5. 5.874 × 999 =
6. 6.791 × 999 =
7. 7.3 × 9 =
8. 8.18 × 99 =
9. 9.7 × 99 =
10. 10.225 × 9 =
11. 11.28 × 99 =
12. 12.246 × 9 =
13. 13.226 × 99 =
14. 14.26 × 99 =
15. 15.23081 × 999 =
16. 16.5436 × 999 =
17. 17.11 × 99 =
18. 18.18 × 99 =
19. 19.15 × 99 =
20. 20.35 × 99 =
21. 21.8 × 9 =
22. 22.6 × 9 =
23. 23.11649 × 999 =
24. 24.31 × 99 =
25. 25.401 × 999 =
26. 26.2965 × 99 =
27. 27.39 × 999 =
28. 28.62 × 99 =
29. 29.201 × 9 =
30. 30.8 × 99 =
31. 31.5589 × 999 =
32. 32.3 × 9 =
33. 33.3 × 9 =
34. 34.28455 × 999 =
35. 35.101 × 9 =
36. 36.95 × 99 =
37. 37.249 × 999 =
38. 38.62 × 99 =
39. 39.25236 × 999 =
40. 40.4 × 9 =

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