Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 420 · 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. 1.5 × 9 =
2. 2.15 × 99 =
3. 3.71 × 9 =
4. 4.125 × 999 =
5. 5.6 × 9 =
6. 6.533 × 99 =
7. 7.7 × 9 =
8. 8.11312 × 999 =
9. 9.234 × 9 =
10. 10.6 × 99 =
11. 11.174 × 999 =
12. 12.7804 × 999 =
13. 13.227 × 9 =
14. 14.1135 × 99 =
15. 15.14 × 99 =
16. 16.1159 × 99 =
17. 17.4 × 9 =
18. 18.74 × 99 =
19. 19.115 × 9 =
20. 20.83 × 999 =
21. 21.5 × 9 =
22. 22.2 × 9 =
23. 23.2 × 9 =
24. 24.3 × 9 =
25. 25.973 × 999 =
26. 26.96 × 99 =
27. 27.2 × 9 =
28. 28.5 × 99 =
29. 29.35 × 99 =
30. 30.156 × 9 =
31. 31.1253 × 99 =
32. 32.3 × 9 =
33. 33.877 × 999 =
34. 34.5 × 99 =
35. 35.2 × 9 =
36. 36.85 × 99 =
37. 37.1262 × 99 =
38. 38.23951 × 999 =
39. 39.7 × 9 =
40. 40.464 × 999 =

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