Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 264 · 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. 1.8 × 9 =
2. 2.176 × 9 =
3. 3.776 × 999 =
4. 4.86 × 99 =
5. 5.81 × 99 =
6. 6.51 × 99 =
7. 7.11 × 99 =
8. 8.3 × 9 =
9. 9.95 × 9 =
10. 10.5 × 9 =
11. 11.4362 × 999 =
12. 12.6 × 9 =
13. 13.403 × 999 =
14. 14.167 × 9 =
15. 15.1416 × 99 =
16. 16.2 × 9 =
17. 17.76 × 999 =
18. 18.509 × 999 =
19. 19.3503 × 999 =
20. 20.26 × 99 =
21. 21.8212 × 999 =
22. 22.23 × 999 =
23. 23.13 × 99 =
24. 24.159 × 9 =
25. 25.86 × 99 =
26. 26.81 × 99 =
27. 27.754 × 999 =
28. 28.65 × 99 =
29. 29.2 × 9 =
30. 30.654 × 99 =
31. 31.3 × 9 =
32. 32.1948 × 99 =
33. 33.76 × 9 =
34. 34.8 × 9 =
35. 35.811 × 999 =
36. 36.2485 × 99 =
37. 37.891 × 999 =
38. 38.3 × 9 =
39. 39.561 × 999 =
40. 40.29421 × 999 =

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