Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 725 · 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. 1.4313 × 999 =
2. 2.713 × 99 =
3. 3.2958 × 99 =
4. 4.25 × 99 =
5. 5.23 × 99 =
6. 6.343 × 999 =
7. 7.21 × 99 =
8. 8.1883 × 99 =
9. 9.13839 × 999 =
10. 10.6975 × 999 =
11. 11.528 × 999 =
12. 12.701 × 999 =
13. 13.541 × 999 =
14. 14.556 × 999 =
15. 15.7 × 9 =
16. 16.76 × 99 =
17. 17.16 × 99 =
18. 18.6 × 9 =
19. 19.311 × 99 =
20. 20.2362 × 999 =
21. 21.10001 × 999 =
22. 22.498 × 999 =
23. 23.25031 × 999 =
24. 24.97 × 9 =
25. 25.491 × 999 =
26. 26.71 × 99 =
27. 27.6 × 9 =
28. 28.2 × 9 =
29. 29.20717 × 999 =
30. 30.57 × 99 =
31. 31.195 × 9 =
32. 32.61 × 99 =
33. 33.76 × 99 =
34. 34.287 × 999 =
35. 35.96 × 99 =
36. 36.6 × 9 =
37. 37.6 × 9 =
38. 38.8886 × 999 =
39. 39.942 × 999 =
40. 40.88 × 99 =

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