简便计算666.66×4 333.3×6666.66×4+333.3×6

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简便计算666.66×4 333.3×6666.66×4+333.3×6

简便计算666.66×4 333.3×6666.66×4+333.3×6
简便计算666.66×4 333.3×6
666.66×4+333.3×6

简便计算666.66×4 333.3×6666.66×4+333.3×6
666.66×4+333.33×6
原式=6×111.11×4+3×111.11×6
=111.11×24+111.11×18
=111.11×(24+18)
=111.11×(40+2)
=4444.4+222.22
=4666.62

666.66×4+333.3×6
=6×(111.11×4+333.3)
=6×(444.44+333.3)
=6× 777.74
=4666.44