Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 554 · 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. 1.5 × 9 =
2. 2.2 × 9 =
3. 3.52 × 99 =
4. 4.1491 × 99 =
5. 5.4 × 9 =
6. 6.4 × 9 =
7. 7.168 × 999 =
8. 8.8528 × 999 =
9. 9.8 × 9 =
10. 10.1798 × 99 =
11. 11.1106 × 99 =
12. 12.42 × 99 =
13. 13.7284 × 999 =
14. 14.865 × 999 =
15. 15.5 × 9 =
16. 16.4 × 9 =
17. 17.58 × 9 =
18. 18.4 × 9 =
19. 19.24 × 99 =
20. 20.585 × 999 =
21. 21.7 × 9 =
22. 22.663 × 99 =
23. 23.18 × 99 =
24. 24.67 × 99 =
25. 25.2 × 9 =
26. 26.5 × 9 =
27. 27.3 × 9 =
28. 28.48 × 99 =
29. 29.451 × 99 =
30. 30.2037 × 99 =
31. 31.61 × 99 =
32. 32.8 × 9 =
33. 33.6 × 9 =
34. 34.3 × 99 =
35. 35.24 × 99 =
36. 36.7 × 9 =
37. 37.4 × 9 =
38. 38.8 × 999 =
39. 39.195 × 999 =
40. 40.7 × 9 =

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