20 以内进退位加减法一步计算20 以内进退位加减法班级:学号:姓名:16- () =314-11 =19- () =48+( )=13()-12=7()-8=107+4=()-3=1711- () =312-12=15-15=13-6=()-9=414- () =1312-( )=914-13=19- () =68+( )=15()-13=1()+6=157+6=()-4=711- () =511-2=()+6=1213-8=()-9=613- () =113-( )=317- () =1019- () =88+( )=17()-13=3()+7=11()-7=12()-4=911- () =711-4=()+6=14()-3=9()-9=813- () =313-( )=517- () =1213-12=9+( )=12()-13=5()+7=13()-8=28+4=11- () =911-6=()+5=11()-3=1112-4=13- () =513-( )=717- () =1414-5=20- ( ) =18()-13=7()+7=15()-8=48+6=()-3=1111-8=()+5=13()-2=912-6=18-( )=813-( )=917- () =1614-7=20- ( ) =207+( )=16()+7=17()-8=68+8=()-3=133+ () =11()+4=1115-11 =12-8=18-( )=1014- () =916- ( ) =114-9=19- () =28+( )=11()-12=5()-8=88+10=()-3=152+ ( ) =1112-10=15-13=13-4=()-9=214- () =1112-( )=714-11 =19- () =48+( )=13()-12=7()+6=137+4=()-3=1711