题目内容
2.4-1.76=
[ ]
A.0.64
B.1.95
C.3.6
D.19.38
口算.
(1)220×4= (2)3000÷5=
(3)800-250= (4)67+76=
1.3-0.6=
4.7-3.8=
4-1.8=
1.25+0.36+0.75=
1-0.76=