一年级100以内进位加法退位减法练习题 (2)

一年级数学100以内的进位加法练习题9 + 9 =+ 6 =5 + 39 =+ 57 =46 + 6 =64 + 8 =+ 38 =35 + 6 =5+67 =89 + 9 =89 + 9 =39 +