Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 54 · 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. 1.244 × 999 =
2. 2.6 × 9 =
3. 3.62 × 99 =
4. 4.29 × 99 =
5. 5.438 × 999 =
6. 6.901 × 999 =
7. 7.896 × 999 =
8. 8.76 × 999 =
9. 9.986 × 999 =
10. 10.74 × 99 =
11. 11.3 × 99 =
12. 12.2 × 9 =
13. 13.138 × 999 =
14. 14.6 × 9 =
15. 15.21008 × 999 =
16. 16.3 × 9 =
17. 17.486 × 999 =
18. 18.953 × 99 =
19. 19.17 × 99 =
20. 20.18791 × 999 =
21. 21.306 × 999 =
22. 22.3 × 9 =
23. 23.4 × 9 =
24. 24.4 × 9 =
25. 25.331 × 999 =
26. 26.6 × 9 =
27. 27.8 × 9 =
28. 28.5 × 9 =
29. 29.5 × 999 =
30. 30.59 × 99 =
31. 31.574 × 99 =
32. 32.91 × 99 =
33. 33.3 × 9 =
34. 34.277 × 999 =
35. 35.51 × 99 =
36. 36.31 × 99 =
37. 37.3 × 9 =
38. 38.31 × 9 =
39. 39.7342 × 999 =
40. 40.12 × 99 =

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