Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 719 · 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. 1.4861 × 999 =
2. 2.3 × 9 =
3. 3.508 × 999 =
4. 4.16 × 99 =
5. 5.2 × 9 =
6. 6.16803 × 999 =
7. 7.2122 × 99 =
8. 8.87 × 99 =
9. 9.7 × 9 =
10. 10.934 × 999 =
11. 11.28 × 99 =
12. 12.88 × 99 =
13. 13.5 × 9 =
14. 14.8 × 9 =
15. 15.2731 × 99 =
16. 16.435 × 99 =
17. 17.3 × 9 =
18. 18.62 × 99 =
19. 19.1281 × 99 =
20. 20.297 × 999 =
21. 21.5351 × 999 =
22. 22.219 × 9 =
23. 23.61 × 99 =
24. 24.45 × 99 =
25. 25.665 × 999 =
26. 26.2 × 9 =
27. 27.2009 × 99 =
28. 28.25 × 9 =
29. 29.8 × 9 =
30. 30.109 × 9 =
31. 31.9 × 99 =
32. 32.66 × 99 =
33. 33.5 × 9 =
34. 34.8 × 99 =
35. 35.3 × 9 =
36. 36.29098 × 999 =
37. 37.82 × 99 =
38. 38.4 × 9 =
39. 39.68 × 99 =
40. 40.25 × 999 =

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