Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 610 · 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. 1.26941 × 999 =
2. 2.74 × 99 =
3. 3.5 × 9 =
4. 4.91 × 99 =
5. 5.831 × 999 =
6. 6.2 × 9 =
7. 7.473 × 999 =
8. 8.91 × 99 =
9. 9.2 × 9 =
10. 10.15647 × 999 =
11. 11.702 × 999 =
12. 12.349 × 999 =
13. 13.8 × 9 =
14. 14.261 × 9 =
15. 15.195 × 9 =
16. 16.94 × 99 =
17. 17.4 × 9 =
18. 18.94 × 99 =
19. 19.2222 × 99 =
20. 20.489 × 999 =
21. 21.6 × 9 =
22. 22.36 × 999 =
23. 23.243 × 999 =
24. 24.11282 × 999 =
25. 25.1908 × 99 =
26. 26.2708 × 99 =
27. 27.94 × 999 =
28. 28.124 × 9 =
29. 29.1088 × 99 =
30. 30.4 × 9 =
31. 31.128 × 999 =
32. 32.68 × 99 =
33. 33.4 × 9 =
34. 34.167 × 9 =
35. 35.1335 × 99 =
36. 36.511 × 999 =
37. 37.34 × 9 =
38. 38.19 × 99 =
39. 39.2 × 9 =
40. 40.2 × 9 =

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