Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 835 · 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. 1.76 × 9 =
2. 2.989 × 999 =
3. 3.3 × 9 =
4. 4.7 × 9 =
5. 5.68 × 99 =
6. 6.37 × 99 =
7. 7.311 × 999 =
8. 8.7 × 9 =
9. 9.2 × 9 =
10. 10.6 × 9 =
11. 11.1731 × 99 =
12. 12.486 × 999 =
13. 13.28 × 99 =
14. 14.7 × 9 =
15. 15.464 × 999 =
16. 16.7 × 9 =
17. 17.15 × 99 =
18. 18.7 × 9 =
19. 19.213 × 999 =
20. 20.35 × 99 =
21. 21.12 × 999 =
22. 22.8 × 9 =
23. 23.12 × 99 =
24. 24.215 × 9 =
25. 25.238 × 999 =
26. 26.15 × 9 =
27. 27.686 × 999 =
28. 28.377 × 999 =
29. 29.31 × 99 =
30. 30.3 × 9 =
31. 31.5 × 9 =
32. 32.1045 × 99 =
33. 33.799 × 999 =
34. 34.141 × 9 =
35. 35.43 × 999 =
36. 36.5 × 9 =
37. 37.963 × 999 =
38. 38.761 × 999 =
39. 39.89 × 99 =
40. 40.17 × 99 =

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