Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 609 · 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. 1.246 × 9 =
2. 2.601 × 999 =
3. 3.7 × 9 =
4. 4.2 × 9 =
5. 5.6 × 99 =
6. 6.4 × 9 =
7. 7.97 × 99 =
8. 8.894 × 99 =
9. 9.61 × 99 =
10. 10.7 × 9 =
11. 11.279 × 99 =
12. 12.3 × 9 =
13. 13.11 × 99 =
14. 14.3 × 9 =
15. 15.8 × 9 =
16. 16.11 × 9 =
17. 17.729 × 999 =
18. 18.45 × 999 =
19. 19.93 × 99 =
20. 20.429 × 999 =
21. 21.484 × 999 =
22. 22.98 × 99 =
23. 23.31 × 99 =
24. 24.89 × 99 =
25. 25.2459 × 99 =
26. 26.8 × 9 =
27. 27.149 × 999 =
28. 28.3 × 9 =
29. 29.159 × 999 =
30. 30.58 × 99 =
31. 31.98 × 99 =
32. 32.7 × 9 =
33. 33.3 × 9 =
34. 34.195 × 9 =
35. 35.18 × 99 =
36. 36.986 × 999 =
37. 37.2291 × 99 =
38. 38.21 × 9 =
39. 39.62 × 99 =
40. 40.7 × 9 =

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