一年级90以内加法减法口算混合练习题五三天天练精华版（10）带答案

37+36 =80-68=39+45=72-12 =40+17=89-12 =44+20 =85-10=36+25 =86-12 =36+15 =37+41 =83-53 =39+26=89-54=4