直接写得数(每小题1分,共9分) (1)46+38= (2)4.2÷0.07= (3)0.625×24= (4)8﹣= (5)0.55﹣= (6)1÷= (7)7.2×= (8)×0÷= (9)=
计算题 (1) (2)
(1)求式中x的值: (2)计算:
计算 (1) (2)解方程:
计算: (1)7-(-4)-3+9 (2) (3) (4)
求下列各式中的的值: (1) (2)