简便方法计算43.8-1.76÷0.8×1.25
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43.8-1.76÷0.8×1.25
=43.8-1.76×5/4×5/4
=43.8-1.76×25/16
=43.8-0.11×25
=43.8-(0.1+0.01)×25
=43.8-2.5-0.25
=41.3-0.25
=41.05
=43.8-1.76×5/4×5/4
=43.8-1.76×25/16
=43.8-0.11×25
=43.8-(0.1+0.01)×25
=43.8-2.5-0.25
=41.3-0.25
=41.05
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