Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 390 · 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. 1.871 × 999 =
2. 2.4 × 9 =
3. 3.2 × 99 =
4. 4.8 × 9 =
5. 5.37 × 99 =
6. 6.8 × 9 =
7. 7.7 × 9 =
8. 8.844 × 999 =
9. 9.453 × 999 =
10. 10.278 × 99 =
11. 11.2521 × 99 =
12. 12.3 × 9 =
13. 13.33 × 99 =
14. 14.72 × 99 =
15. 15.4466 × 999 =
16. 16.359 × 99 =
17. 17.3 × 9 =
18. 18.69 × 9 =
19. 19.14961 × 999 =
20. 20.17451 × 999 =
21. 21.469 × 99 =
22. 22.8 × 9 =
23. 23.145 × 9 =
24. 24.2639 × 99 =
25. 25.58 × 99 =
26. 26.191 × 999 =
27. 27.6 × 9 =
28. 28.648 × 999 =
29. 29.279 × 999 =
30. 30.614 × 999 =
31. 31.16711 × 999 =
32. 32.241 × 999 =
33. 33.96 × 99 =
34. 34.643 × 99 =
35. 35.746 × 99 =
36. 36.31 × 99 =
37. 37.238 × 9 =
38. 38.99 × 999 =
39. 39.93 × 9 =
40. 40.979 × 99 =

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