+0.375=
0.6×1.3=
10÷0.5=
+-+=
12-0.32=
+=
3-+=
1-(+)=
0.01+10.099= 4.31×0.7= 7.5- 2.5= 5.4+1.89+4.6=
0.56+4.44= 2.9+3.7+2.1= 4×0.25= 1.25×5×8=
7.6×8+2.4×8= 7.2÷4 =
60平方分米=平方米 8厘米=米
100分=时 30公顷=平方千米
+= ﹣= 3.5×= 2÷0.5=
1.5÷0.05= 8÷0.001= 2.2+8= 31.9-3.09= 3×4÷3×4=
× = 5- + = × = 0.12= 1÷ - ÷1=