Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 37 · 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. 1.76 × 99 =
2. 2.259 × 99 =
3. 3.85 × 99 =
4. 4.904 × 999 =
5. 5.15 × 9 =
6. 6.33 × 99 =
7. 7.3 × 9 =
8. 8.9 × 99 =
9. 9.42 × 9 =
10. 10.537 × 999 =
11. 11.841 × 999 =
12. 12.1205 × 99 =
13. 13.3 × 9 =
14. 14.42 × 99 =
15. 15.1345 × 99 =
16. 16.3 × 9 =
17. 17.23 × 99 =
18. 18.789 × 999 =
19. 19.816 × 99 =
20. 20.2 × 99 =
21. 21.23902 × 999 =
22. 22.2 × 9 =
23. 23.26 × 99 =
24. 24.7 × 9 =
25. 25.159 × 9 =
26. 26.58 × 9 =
27. 27.8 × 9 =
28. 28.1924 × 99 =
29. 29.63 × 9 =
30. 30.1993 × 99 =
31. 31.25 × 99 =
32. 32.1117 × 999 =
33. 33.2638 × 99 =
34. 34.426 × 999 =
35. 35.5 × 9 =
36. 36.23 × 99 =
37. 37.6 × 9 =
38. 38.8 × 9 =
39. 39.2955 × 99 =
40. 40.61 × 99 =

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