100以内两位数进位加法和退位减法口算作业
41-15= 41+29= 41-23= 33-19= 33+19= 45-16= 45+16= 17+28= 53+39=
29+35= 94-16= 35-28= 53-36= 28-19= 44-16= 44+16= 38+36= 42-33=
42+33= 25+46= 46-29= 50-35= 55+35= 49+36= 55+45= 49+49= 36+36=
25+25= 48+48= 42-39= 42+39= 39+39= 45+16= 33-19= 46-29= 55+35=
42-39= 42+39= 38+36= 41-23= 40-15= 53+39= 94-16= 53-36= 44-16=
39+39= 25+25= 49+49= 45-16= 33-19= 41+29= 17+28= 28+35= 35-28=
28-9= 44+16= 43-36= 50-35= 25+46= 42-33= 55-48= 36+36= 42-39=
48+48= 45+45= 33+48= 72-48= 41-32= 18+22= 33-18= 33+18= 45+26=
45-26= 43-16= 43+18= 35-17= 35+17= 41-22= 48+22= 30-18= 34+18=
67+25= 63-25= 45+55= 49-38= 49+38= 52-26= 52-26= 49+29= 40-29=
28+28= 38+46= 49+25= 49-25= 28+64= 64-28= 45-18= 45+28= 36+46=
47-39= 21-12= 73-25= 25-18= 50-36= 35+46= 46-37= 48-19= 48+19=