36X48十72X26

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36X48十72X2636X48十72X2636X48十72X26=36×48+36×2×26=36×48+36×52=36×(48+52)=36×100=3600

36X48十72X26
36X48十72X26

36X48十72X26
=36×48+36×2×26
=36×48+36×52
=36×(48+52)
=36×100
=3600