题目内容
48.3×0.59-2.5×4.9×4+5.17×5.9.
48.3×0.59-2.5×4.9×4+5.17×5.9,
=48.3×0.59+51.7×0.59-2.5×4×4.9,
=(48.3+51.7)×0.59-49,
=100×0.59-49,
=59-49,
=10.
=48.3×0.59+51.7×0.59-2.5×4×4.9,
=(48.3+51.7)×0.59-49,
=100×0.59-49,
=59-49,
=10.
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