题目内容
口算
(1)5
(2)0.5
(3)0.05
(4)0.05
(1) 5×11= (2) 25×4=
(3) 200×2= (4) 630÷3=
(1)5×38= (2)110×10=
(3)6×5+40= (4)18×40-720=
(2)5×2= 2×5=
(3)5×3= 3×5=
(4)5×4= 4×5=
(5)5×5=