四个同学段考成绩如下表（数学）：
这四个同学段考的平均成绩是多少分？四个同学段考成绩统计图
=÷21= 2.4×= 42÷=×= 10×10%= 3﹣1= 3π= 1﹣+=×÷×=
÷8= 1÷0.01=×6=÷= 1÷=+=﹣=÷=+=×=
直接写得数．========
直接写得数 6÷=+=×8=﹣=×=÷=+=÷= 14×= 1÷60%=
1÷÷=8 ．
=
÷21= 2.4×
= 42÷
=
×
=
= 3π= 1﹣
+
=
×
÷
×
=
÷8= 1÷0.01=
×6=
÷
= 1÷
=
+
=
﹣
=
÷
=
+
=
×
=
=
=
=
=
=
=
=
=
=
﹣
=
×
=
=
+
=
÷
= 14×
= 1÷60%=
÷
=8 ．
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