答:
2÷(80%乘11又4分之1-1.25.乘5分之4)乘(7又4分之1+8分之1+0.625)
=2÷(0.8×11.25-1.25×0.8)×(7.25+0.125+0.625)
=2÷[0.8×(11.25-1.25)]×(7.25+0.75)
=2÷(0.8×10)×8
=2÷8×8
=2
答:
2÷(80%乘11又4分之1-1.25.乘5分之4)乘(7又4分之1+8分之1+0.625)
=2÷(0.8×11.25-1.25×0.8)×(7.25+0.125+0.625)
=2÷[0.8×(11.25-1.25)]×(7.25+0.75)
=2÷(0.8×10)×8
=2÷8×8
=2