20以内进位加法、退位减法练习题12套

-9=18-9=?14-5=?15-9=?14-9=13-8=?12-7=?15-7=?17-8=12-5=?12-8=?11-3=?14-6=11-7=?14-7=?14-8=?12-9=13-9=?13-4=?11-6=?17-9=13-6=?11-5=?12-6=?15-8=16-9=?12-4=?11-2=?11-4=16-7=?13-5=?13-7=?15-6=11-7=?13-8=?12-3=?17-8=15-8=?14-7=12-6=?15-9=11-4=?16-8=?14-8=?11-3=13-5=?14-5=?18-9=?12-9=13-6=?15-7=?11-8=12-7=13-7=?13-4=?11-2=?13-9=12-5=?17-9=?12-4=?11-5=11-6=?14-6=14-9=?12-8=16-9=?15-6=?11-9=?16-7=15-7=11-8=?13-6=?14-8=17-9=?12-6=?13-9=?11-9=15-8=?11-4=?11-6=?12-8=15-9=11-5=?12-5=?12-7=13-4=14-5=?15-6=?17-8=11-6=?18-9=?11-3=?13-6=11-2=?14-9=?16-9=?13-6=20以内退位减法练习题(二)姓名:_______时间:_____做对了_____题(共100题)17-9=?12-6=?13-8=12-8=12-9=?15-7=?14-7=?12-5=12-4=?11-3=?18-9=?12-7=14-5=?15-9=?13-7=?11-8=11-5=13-5=?14-6=?16-7=13-4=13-9=?15-6=?16-8=11-6=16-9=?17-8=?11-7=11-4=?15-8=?11-2=?12-3=11-9=?14-9=?14-8=?13-6=