Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 941 · 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. 1.621 × 999 =
2. 2.566 × 999 =
3. 3.2129 × 999 =
4. 4.12 × 99 =
5. 5.159 × 9 =
6. 6.14501 × 999 =
7. 7.6 × 9 =
8. 8.5 × 9 =
9. 9.2659 × 99 =
10. 10.8 × 9 =
11. 11.66 × 999 =
12. 12.307 × 99 =
13. 13.5 × 9 =
14. 14.1615 × 99 =
15. 15.3 × 9 =
16. 16.7 × 9 =
17. 17.221 × 9 =
18. 18.7 × 99 =
19. 19.5 × 9 =
20. 20.451 × 99 =
21. 21.213 × 9 =
22. 22.7 × 9 =
23. 23.4 × 9 =
24. 24.886 × 99 =
25. 25.271 × 999 =
26. 26.836 × 999 =
27. 27.5 × 9 =
28. 28.73 × 99 =
29. 29.6 × 9 =
30. 30.7 × 9 =
31. 31.1555 × 99 =
32. 32.52 × 99 =
33. 33.3 × 9 =
34. 34.26 × 99 =
35. 35.18871 × 999 =
36. 36.98 × 99 =
37. 37.61 × 99 =
38. 38.5737 × 999 =
39. 39.656 × 999 =
40. 40.203 × 9 =

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