Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 716 · 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. 1.8 × 9 =
2. 2.5 × 9 =
3. 3.479 × 999 =
4. 4.2 × 9 =
5. 5.343 × 999 =
6. 6.94 × 999 =
7. 7.14223 × 999 =
8. 8.28189 × 999 =
9. 9.4 × 9 =
10. 10.19533 × 999 =
11. 11.717 × 999 =
12. 12.8 × 9 =
13. 13.23 × 99 =
14. 14.7 × 9 =
15. 15.14 × 99 =
16. 16.262 × 999 =
17. 17.95 × 99 =
18. 18.7 × 99 =
19. 19.4 × 9 =
20. 20.21 × 999 =
21. 21.6 × 9 =
22. 22.51 × 99 =
23. 23.15 × 99 =
24. 24.7 × 9 =
25. 25.4 × 9 =
26. 26.4 × 9 =
27. 27.2 × 9 =
28. 28.431 × 999 =
29. 29.27 × 999 =
30. 30.91 × 99 =
31. 31.518 × 999 =
32. 32.626 × 999 =
33. 33.6 × 9 =
34. 34.17871 × 999 =
35. 35.818 × 999 =
36. 36.903 × 999 =
37. 37.218 × 9 =
38. 38.22197 × 999 =
39. 39.137 × 999 =
40. 40.16 × 99 =

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