Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 726 · 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. 1.9993 × 999 =
2. 2.2025 × 99 =
3. 3.57 × 999 =
4. 4.95 × 99 =
5. 5.422 × 999 =
6. 6.13 × 99 =
7. 7.14301 × 999 =
8. 8.6 × 9 =
9. 9.3 × 9 =
10. 10.875 × 999 =
11. 11.246 × 9 =
12. 12.84 × 99 =
13. 13.7 × 9 =
14. 14.975 × 999 =
15. 15.5 × 9 =
16. 16.7 × 9 =
17. 17.76 × 99 =
18. 18.96 × 99 =
19. 19.165 × 9 =
20. 20.1661 × 99 =
21. 21.66 × 99 =
22. 22.736 × 999 =
23. 23.5 × 9 =
24. 24.2 × 9 =
25. 25.251 × 999 =
26. 26.7 × 9 =
27. 27.62 × 99 =
28. 28.975 × 999 =
29. 29.751 × 999 =
30. 30.778 × 999 =
31. 31.972 × 99 =
32. 32.7 × 9 =
33. 33.6 × 9 =
34. 34.9 × 99 =
35. 35.21 × 99 =
36. 36.22 × 99 =
37. 37.128 × 9 =
38. 38.2556 × 99 =
39. 39.2278 × 99 =
40. 40.668 × 999 =

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