30以内进位退位加减法 题目30以内进位退位加减法题目()-11=1925-()=522-()=1717+()=26()+19=23()+13=26()-9=2328-()=1424-()=1818+()=25()+6=25()+14=28()-11=1530-()=1321-()=1516+()=29()+3=27()+12=24()-18=1729-()=1229-()=1716+()=30()+4=22()+19=30()-9=1930-()=927-()=155+()=27()+26=32()+12=27()-8=1717-()=8(...