18.3×4.3918.3\times 4.39
1
Use the algorithm method.
18.3
×4.39
172
1.647
2
5.490
31
73.200
111
80.337


2
Therefore, 18.3×4.39=80.33718.3\times 4.39=80.337.
80.33780.337

Done
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