Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 45 · 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. 1.516 × 999 =
2. 2.438 × 99 =
3. 3.2 × 9 =
4. 4.2 × 9 =
5. 5.414 × 999 =
6. 6.66 × 99 =
7. 7.67 × 9 =
8. 8.86 × 99 =
9. 9.561 × 999 =
10. 10.2 × 9 =
11. 11.101 × 999 =
12. 12.34 × 99 =
13. 13.516 × 999 =
14. 14.81 × 99 =
15. 15.17059 × 999 =
16. 16.62 × 99 =
17. 17.58 × 99 =
18. 18.304 × 999 =
19. 19.33 × 99 =
20. 20.2285 × 99 =
21. 21.1271 × 99 =
22. 22.82 × 99 =
23. 23.113 × 9 =
24. 24.36 × 99 =
25. 25.29486 × 999 =
26. 26.121 × 9 =
27. 27.4 × 9 =
28. 28.21 × 99 =
29. 29.911 × 999 =
30. 30.19 × 99 =
31. 31.6 × 9 =
32. 32.169 × 999 =
33. 33.10708 × 999 =
34. 34.68 × 99 =
35. 35.81 × 999 =
36. 36.3 × 9 =
37. 37.25 × 99 =
38. 38.68 × 99 =
39. 39.589 × 999 =
40. 40.7 × 9 =

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