Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 453 · 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. 1.561 × 999 =
2. 2.852 × 999 =
3. 3.158 × 999 =
4. 4.112 × 999 =
5. 5.204 × 999 =
6. 6.994 × 999 =
7. 7.219 × 9 =
8. 8.31 × 99 =
9. 9.28 × 99 =
10. 10.52 × 99 =
11. 11.308 × 999 =
12. 12.47 × 99 =
13. 13.56 × 99 =
14. 14.27 × 99 =
15. 15.21 × 99 =
16. 16.1861 × 99 =
17. 17.78 × 99 =
18. 18.18 × 99 =
19. 19.41 × 99 =
20. 20.231 × 9 =
21. 21.4 × 9 =
22. 22.2 × 9 =
23. 23.4 × 9 =
24. 24.68 × 99 =
25. 25.658 × 999 =
26. 26.1368 × 99 =
27. 27.1942 × 999 =
28. 28.573 × 999 =
29. 29.3 × 9 =
30. 30.8 × 999 =
31. 31.32 × 99 =
32. 32.77 × 99 =
33. 33.47 × 99 =
34. 34.1812 × 99 =
35. 35.53 × 99 =
36. 36.41 × 99 =
37. 37.14 × 99 =
38. 38.2 × 9 =
39. 39.19 × 99 =
40. 40.2679 × 99 =

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