题目内容
12+1-7=
[ ]
A.0
C.8
口算.
(1)60×7= (2)180÷2=
(3)12×4= (4)94+16=
0.8+0.7= 1.4-0.5= 10.5+8.6= 11.4-3.5=
12.4+6.7= 2.8-1.9= 5.6+7.8= 4.7+5.3=