算一算，比一比下面各题的运算顺序和运算结果．7200÷40﹣4×57200÷（40﹣4×5）7200÷[（40﹣4）×5]．
直接写出得数． 81﹣46= 0.56÷0.7= 8﹣3.2= 15÷1%=×=+= 0.42=÷2=
直接写出结果． 287﹣199= 0.54+0.46= 0.48÷0.03= 9+=×4=÷=××= 6.9+3.1﹣6.9+3.1=
直接写得数 652﹣398= 0.9÷0.01=﹣= 0.4×2.5= 6.8×11﹣6.8=+3÷8=÷4×÷4= 0.42=
直接写出得数． 53+48= 0.7×1.4= 15.7÷3.14= 7﹣4.45= 24×=+=﹣=÷7=
直接写出得数． 382﹣297=+=÷2= 3.8+6.2= 8.1÷3×2=×33= 68﹣198= 0.65÷1.3= 75×10%= 0.75﹣（0.75+3.4）= 1÷= 1÷0.01=﹣=+×2= 48×（﹣）=
×
=
+
=
÷2=
=
×4=
÷
=
×
×
= 6.9+3.1﹣6.9+3.1=
﹣
= 0.4×2.5=
+3÷8=
÷4×
÷4= 0.42=
=
+
=
﹣
=
÷7=
+
=
÷2= 3.8+6.2= 8.1÷3×2=
×33= 68﹣198= 0.65÷1.3= 75×10%= 0.75﹣（0.75+3.4）=
= 1÷0.01=
﹣
=
+
×2= 48×（
﹣
）=
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