仔细观察，哪幅图是大长方形中缺少的那一块？
6﹣2= 18÷9= 5.6×=+= 8÷=÷0.8= 3.6﹣1=×= 3.14×4=+=+2= 0.45÷= 55÷= 8÷= 10﹣9.45= 3+4= 0.36×100= 0.5÷100= 1×=÷7=
直接写出得数÷3=×15= 2﹣=÷= 5÷=
直接写出得数= 1÷=÷60%=×15== 6.8÷10%= 4.5+== 2﹣==
计算 75××13×××÷××÷×÷÷÷÷÷21．
×=÷6=÷= 1÷=×=﹣=+= 6÷= 0÷=×===
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= 18
÷9= 5.6×
=
+
= 8÷
=
÷0.8= 3.6﹣1
=
×
= 3.14×4=
+
=
+2
= 0.45÷
= 55÷
= 8÷
= 10﹣9.45=
+4
= 0.36×100= 0.5÷100= 1
×
=
÷3=
×15= 2﹣
=
÷
= 5÷
=
= 1÷
=
÷60%=
×15=
=
= 2﹣
=
=
×13
×
×
×
÷
×
×
÷
×
÷
÷
÷
÷
÷21．
×
=
÷6=
÷
= 1÷
×
=
﹣
=
+
= 6÷
=
=
=
=
=