一年级50以内加法减法口算混合练习题五三天天练精华版（8）带答案

10+23 =50-25 =16+22 =42-11 =20+10=47-40=18+10=50-32 =15+22 =47-22 =12+16=25+24=47-37=21+25 =50-23 =1