Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 495 · 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. 1.13 × 99 =
2. 2.639 × 999 =
3. 3.62 × 99 =
4. 4.3 × 9 =
5. 5.18 × 999 =
6. 6.1691 × 999 =
7. 7.223 × 999 =
8. 8.381 × 99 =
9. 9.26793 × 999 =
10. 10.4 × 9 =
11. 11.58 × 99 =
12. 12.173 × 999 =
13. 13.63 × 99 =
14. 14.8 × 9 =
15. 15.3 × 9 =
16. 16.1572 × 99 =
17. 17.4 × 99 =
18. 18.942 × 999 =
19. 19.1909 × 99 =
20. 20.3 × 9 =
21. 21.8 × 9 =
22. 22.41 × 99 =
23. 23.84 × 99 =
24. 24.1284 × 99 =
25. 25.633 × 999 =
26. 26.2 × 9 =
27. 27.27901 × 999 =
28. 28.4 × 9 =
29. 29.247 × 9 =
30. 30.6 × 9 =
31. 31.5 × 9 =
32. 32.41 × 99 =
33. 33.86 × 99 =
34. 34.2 × 99 =
35. 35.8 × 9 =
36. 36.47 × 99 =
37. 37.96 × 99 =
38. 38.57 × 99 =
39. 39.221 × 9 =
40. 40.91 × 99 =

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