(0.62加上7.638除以0.1)除以0.25脱式(简算)

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(0.62加上7.638除以0.1)除以0.25脱式(简算)(0.62加上7.638除以0.1)除以0.25脱式(简算)(0.62加上7.638除以0.1)除以0.25脱式(简算)原式=(0.62+7

(0.62加上7.638除以0.1)除以0.25脱式(简算)
(0.62加上7.638除以0.1)除以0.25脱式(简算)

(0.62加上7.638除以0.1)除以0.25脱式(简算)
原式=(0.62+76.38)x4
=77x4
=70x4+7x4
=280+28
=308