小学一年级下册100以内两位数进位加法退位减法计算题8页.doc

40-15=41+29=41-23=33-19=33+19=45-16=45+16=17+28=53+39=28+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+45=36+36=42+39