8又8分之7+88又8分之7+888又8分之7+8分之1×3和10÷8+3.96×12.5%＋0.204×1又4分之1简便计算.
问题描述：
8又8分之7+88又8分之7+888又8分之7+8分之1×3和10÷8+3.96×12.5%＋0.204×1又4分之1简便计算.
答
8又8分之7+88又8分之7+888又8分之7+8分之1×3
=8+88+888+7/8+7/8+7/8+3/8
=8+88+888+3
=12+88+888-1
=988-1
=987
10÷8+3.96×12.5%＋0.204×1又4分之1
=1.25+0.396×1.25＋0.204×1.25
=1.25x(1+0.396+0.204)
=1.25x1.6
=1.25x0.8x2
=2
答
8又8分之7+88又8分之7+888又8分之7+8分之1×3=9-1/8+89-1/8+889-1/8+3/8=9+89+889=98710÷8+3.96×12.5%＋0.204×1又4分之1=0.125×10+3.96×0.125+2.04×0.125=0.125×(10+3.96+2.04)=0.125×16=2