口算：
6.3+7= 4.8÷0.08= 9+0.1= 3﹣0.67﹣0.33=
0.08÷0.2= 0.2×0.4= 1÷0.05= 0+2÷5=
0.081×100= 7.96×10= 40万﹣13万= 0.45+3.5+.055=
1﹣0.1= 0.31+0.3= 0.72÷1.2= 0.05×1=
口算：
6.3+7= 4.8÷0.08= 9+0.1= 3﹣0.67﹣0.33=
0.08÷0.2= 0.2×0.4= 1÷0.05= 0+2÷5=
0.081×100= 7.96×10= 40万﹣13万= 0.45+3.5+.055=
1﹣0.1= 0.31+0.3= 0.72÷1.2= 0.05×1=
公顷是
公顷的多少？
=
=
=
=
=
=
=
=
×6= 0÷
= 1÷10%= 4﹣
﹣
=
×5+
×9=
÷
=
÷6= 45×80%=
=
×2÷
﹣
×
÷
÷
+
﹣
÷90%
﹣12.5% 48%×
．
﹣
= 8×
=
÷
= 3.5
=
×
=
×6=
粤公网安备 44130202000953号