相关试题
57+28= 0.12×1000= 240﹣170= 13×0.4= 69÷23=
0.8×0.5= 0.24÷2= 4.6+3.9= 303÷3= 23÷24=
0.049÷10= 105﹣99= 
+
= 
+
= 
﹣
=
2﹣
= 0.2÷
= 41×82=
57+28= 0.12×1000= 240﹣170= 13×0.4= 69÷23=
0.8×0.5= 0.24÷2= 4.6+3.9= 303÷3= 23÷24=
0.049÷10= 105﹣99= += += ﹣=
2﹣= 0.2÷= 41×82=
= 1﹣
= 4×0.25= 53=
﹣
﹣
+
﹣
﹣（
﹣
） 
+
+
+
﹣
+
= 
﹣
= 
﹣
= 
+
= 
+
= 
﹣
﹣
=
= 
+
= 
﹣1= 2+
=
+
= 1﹣
= 360÷6= 20×7= 79×2=
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