题目内容
口算.
22
口算
(1) 22×300= (2)170+150=
(3) 630÷30= (4) 450÷50=
(5) (950-500)÷9=
(1)22×200= (2)540÷60=
(3)0÷900= (4)3300÷11=
(88
880÷8= (88+22)×4=