Question

1.25×17.6+36÷8+2.64×12.5简便计算要思路

Answer 1

1.25×17.6+36÷8+2.64×12.5
=0.125×176+36×0.125+0.125×264（1.25、除以8就是乘以0.125、12.5转化为0.125）
=0.125×（176+36+264）（乘法分配律）
=0.125×（176+300）（加法结合律）
=0.125×476
=0.125×（4×119）
=0.125×4×119
=0.5×119
=59.5

Answer 2

分析：125×8=1000 12.5×0.08=1 1.25×0.8=1 0.125×8=1 125×0.008=1
1.25×17.6+36÷8+2.64×12.5
=1.25×（0.8×22）+（32+4）÷8+（33×0.08）×12.5
=1.25×0.8×22+（32÷8+4÷8）+33×0.08×12.5
=1×22+（4+0.5）+33×1
=22+4.5+33
=59.5

Answer 3

1.25×17.6+36÷8+2.64×12.5
=1.25×17.6+2.64×12.5+36÷8
=1.25×17.6+26.4×1.25+36÷8
=1.25×（17.6+26.4）+36÷8
=1.25×44+36÷8
=1.25×40+1.25×4+36÷8
=50+5+4.5
=59.5
望采纳

Answer 4

=1.25×（17.6+2.64×10）+36×（10-2）
=1.25×44+360-72
=343

Answer 5

1.25×17.6+1.25×26.4+36÷8
=1.25×（17.6+26.4）+4.5
=1.25×44+4.5
=1.25×4×11+4.5
=55+4.5
=59.5