题目内容
口算
(1)630÷70= (2)9×3+6=
(3)300÷60= (4)560÷80=
(1)240÷6= (2)17×30=
(3)630÷3= (4)35×20=
(1)630÷90= (2)40+40÷40=
(3)350+80= (4)630÷70=