Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 852 · 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. 1.224 × 9 =
2. 2.56 × 99 =
3. 3.54 × 99 =
4. 4.3302 × 999 =
5. 5.2 × 9 =
6. 6.378 × 999 =
7. 7.4946 × 999 =
8. 8.59 × 99 =
9. 9.745 × 999 =
10. 10.5 × 9 =
11. 11.384 × 999 =
12. 12.6 × 9 =
13. 13.2 × 9 =
14. 14.3 × 9 =
15. 15.8 × 9 =
16. 16.5 × 99 =
17. 17.2676 × 99 =
18. 18.3335 × 999 =
19. 19.199 × 9 =
20. 20.973 × 999 =
21. 21.17 × 99 =
22. 22.17315 × 999 =
23. 23.265 × 999 =
24. 24.4 × 9 =
25. 25.28 × 99 =
26. 26.5 × 99 =
27. 27.4 × 9 =
28. 28.336 × 999 =
29. 29.4 × 9 =
30. 30.637 × 999 =
31. 31.808 × 999 =
32. 32.492 × 999 =
33. 33.781 × 999 =
34. 34.65 × 9 =
35. 35.4 × 9 =
36. 36.2 × 9 =
37. 37.274 × 999 =
38. 38.11 × 99 =
39. 39.13 × 99 =
40. 40.332 × 99 =

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