三年级同学给“手拉手”小伙伴捐图书．（1）班捐了184本，（2）班和（3）班都捐了168本，（4）班捐172本，（5）班比（4）班多1本．平均每个班捐了图书多少本？
直接写出得数．
5.65×10= 2﹣
= 10﹣0.95=
×÷
×=
×50%=
（3.5%﹣0.035）÷2=×
= 1.3+27= 1﹣﹣
= 87÷8.7=
直接写得数．
568﹣198= 3.8+6.2= 4.8×2= 0.65÷1.3=
24×5=
﹣
=
+
= 1÷
=
48×（
﹣
）=
×
×2=
直接写得数．
+
= 0÷
=
×6= 7.125﹣
=
8.4+8= 3：0.5= 6÷
= 100×0.1%=
﹣
=
×
=
÷
=1÷5×=
×
÷3=
×4+= 2﹣
﹣
=
×5÷×5=
口算高速路．
476﹣98= 1×
= 3×
÷3×
=
=
= 0.25×0.4= 0.99×
×0=
=
直接口算写出下面各题的得数．
498+187= 6﹣4.5= 2.25×4= 10÷0.1=
×
= 1÷
=
×0.12×5=（
﹣
）×12=