一年級兩位數加整十數的加法
(1)57 + 30 =
(2)46 + 30 =
(3)58 + 20 =
(4)44 + 40 =
(5)62 + 30 =
(6)89 + 10 =
(7)33 + 10 =
(8)49 + 30 =
(9)53 + 10 =
(1)57 + 30 =
(2)46 + 30 =
(3)58 + 20 =
(4)44 + 40 =
(5)62 + 30 =
(6)89 + 10 =
(7)33 + 10 =
(8)49 + 30 =
(9)53 + 10 =