1.-2.5除5/8X(-1/4)2.23X(-5)-(-3)出3/128 3.(-56)除(-1/32)+(-44)X(+32)
问题描述:
1.-2.5除5/8X(-1/4)2.23X(-5)-(-3)出3/128 3.(-56)除(-1/32)+(-44)X(+32)
答
1.1
2.13
3.-384过程
=-5/2*8/5*(-1/4)=1 *是乘
=23*(-5)-(-3)*128/3=-115+128=13
=-56*(-32)+(-44)*32=1792-1408=-384