下面是一次测试中某班成绩统计图．假如60分以下的同学共有8人，你能提出什么数学问题并解答？
计算．．
直接写得数．﹣= 1﹣=+=﹣=+=+7= 4﹣=﹣0.9=﹣=+=﹣1=++=
口算下面各题．+=﹣=+=﹣= 6.4+2.3= 7.3﹣0.4= 1.1+2.8= 707÷7= 360÷3= 93÷3= 40×25= 720÷4= 80﹣25= 36×0=
直接写得数 1﹣= 12﹣12×0.1=﹣= 0.3+= 1.66÷2=+= 7﹣= 23+52=﹣0.75= 50×25×1.2=
直接写出得数．======== 1.2×0.5= 0.16÷0.8= 0.32= 53=
．
﹣
= 1﹣
=
+
=
﹣
=
+
=
+7=
=
﹣0.9=
﹣
=
+
=
﹣1=
+
+
=
+
=
﹣
=
+
=
﹣
= 6.4+2.3= 7.3﹣0.4=+=﹣=+=﹣= 6.4+2.3= 7.3﹣0.4=
= 12﹣12×0.1=
﹣
= 0.3+
= 1.66÷2=
+
= 7﹣
= 23+52=
﹣0.75= 50×25×1.2=
=
=
=
=
=
=
=
=
粤公网安备 44130202000953号