Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 370 · 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. 1.2 × 99 =
2. 2.25 × 99 =
3. 3.81 × 99 =
4. 4.305 × 999 =
5. 5.344 × 999 =
6. 6.74 × 99 =
7. 7.853 × 999 =
8. 8.4419 × 999 =
9. 9.2 × 9 =
10. 10.41 × 99 =
11. 11.87 × 99 =
12. 12.17 × 9 =
13. 13.5027 × 999 =
14. 14.574 × 99 =
15. 15.17 × 99 =
16. 16.235 × 9 =
17. 17.91 × 99 =
18. 18.221 × 9 =
19. 19.23592 × 999 =
20. 20.4 × 9 =
21. 21.356 × 999 =
22. 22.1844 × 999 =
23. 23.3 × 9 =
24. 24.179 × 9 =
25. 25.2044 × 99 =
26. 26.3 × 9 =
27. 27.75 × 99 =
28. 28.25 × 99 =
29. 29.3 × 99 =
30. 30.6 × 9 =
31. 31.733 × 999 =
32. 32.71 × 99 =
33. 33.9 × 99 =
34. 34.58 × 99 =
35. 35.6 × 9 =
36. 36.8 × 9 =
37. 37.3 × 9 =
38. 38.92 × 99 =
39. 39.3 × 9 =
40. 40.2 × 9 =

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