试题 试卷
题型:解决问题 题类:常考题 难易度:困难
一年级 1~~5的减法131
+ = + = +
1+ =3 0+ =4 4- =2 5- =0
{#blank#}1{#/blank#}
{#blank#}2{#/blank#}
{#blank#}3{#/blank#}
{#blank#}4{#/blank#}
{#blank#}5{#/blank#}
试题篮