请展开查看知识点列表
x-17.2=26.67
x=
x-12.56=15.7
x=
x-1.25=1.25
x=.
x+2.28=4.8
x-9.42=12.56
0.6×0.5=0.57-0.5=2.4×50=1.5×0.6=10-3.97=
0.24×0.2=800×1.25=9.6×0.01=0.05×1.6=2.17×0.1=
进入组卷