3.6×31又2/5+43.9×6又2/5=?
1个回答
这个.简便方法似乎也不怎么简便
原式
=(0.6*31+43.9)*6*2/5
=62.5*6*2/5
=375*2/5
=150
相关问题
递等式计算:71又1/6+61又1/5×5/6+51又1/4×4/5+41又1/3×3/4+31又1/2×2/3
1.3.6x31又5分之2+43.9x6又5分之2+6= 2.(9又7分之2+79又9分之2)
3.6×31又5分之2+3.14×64 要简便
简便运算:31又1/3×41又1/2-11又1/3×41又1/2×2-9.5×11又1/3
3.6×31.4+43.9×6.4.
3.6×31.4+43.9×6.4.
3.6×31.4+43.9×6.4.
3.6×31.4+43.9×6.4.
(-4又1/2)÷1又4/5×(-6又1/3)÷6又1/3×(-1又4/5)÷4又1/2×(-4又1/2)÷1又4/5×
(2又7/9除以1/6+1/3)×(32/5-1又2/5×12/17)