Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 296 · 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. 1.6 × 9 =
2. 2.324 × 999 =
3. 3.498 × 999 =
4. 4.6 × 9 =
5. 5.21 × 9 =
6. 6.53 × 99 =
7. 7.443 × 999 =
8. 8.27261 × 999 =
9. 9.1984 × 99 =
10. 10.2 × 9 =
11. 11.3 × 9 =
12. 12.74 × 9 =
13. 13.142 × 9 =
14. 14.7 × 999 =
15. 15.44 × 99 =
16. 16.2 × 9 =
17. 17.72 × 99 =
18. 18.709 × 99 =
19. 19.91 × 99 =
20. 20.48 × 99 =
21. 21.8 × 9 =
22. 22.5 × 9 =
23. 23.756 × 99 =
24. 24.85 × 99 =
25. 25.27981 × 999 =
26. 26.14 × 99 =
27. 27.10065 × 999 =
28. 28.446 × 999 =
29. 29.3 × 9 =
30. 30.2 × 9 =
31. 31.44 × 99 =
32. 32.714 × 999 =
33. 33.6656 × 999 =
34. 34.5 × 99 =
35. 35.5 × 99 =
36. 36.4 × 9 =
37. 37.2582 × 99 =
38. 38.7 × 9 =
39. 39.663 × 999 =
40. 40.916 × 999 =

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