五年级简便运算55.5+72x0.2-14.4=

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五年级简便运算55.5+72x0.2-14.4=五年级简便运算55.5+72x0.2-14.4=五年级简便运算55.5+72x0.2-14.4=55.5+72x0.2-14.4=55.5+14.4-1

五年级简便运算55.5+72x0.2-14.4=
五年级简便运算55.5+72x0.2-14.4=

五年级简便运算55.5+72x0.2-14.4=
55.5+72x0.2-14.4
=55.5+14.4-14.4
=55.5

55.5

55.5+72x0.2-14.4=55.5+(72x0.2-14.4)=55.5

55.5+72X0.2-14.4
=55.5+14.4-14.4
=55.5