4.7×10.2 0.88×4.9+5.1×0.88 2.5×8×0.4×0.125 30.5﹣15.64﹣12.36×0.4．
3.26+2.4=== 3.6÷0.6= 1﹣0.52= 2.5×3.5×0.4===
直接写得数：×0.87=÷1.2=÷= 0.56×= 2006﹣619= 6﹣= 3.2×= 0.3×0.4= 2.85+1.5= 73.05﹣3.96==== 1÷×= 7×÷7×=
直接写得数．﹣= 8÷0.4=﹣=+=﹣= 7﹣6.38=+=+=0.22×0.5= 10﹣4.8﹣3.2=
直接写出得数．=== 10﹣8.9= （）×24= 42÷= 2.7×= 5.2÷10%=
直接写出得数． ﹣= 8.73+27=×3=×= 0.3×= 5﹣= 8.4÷0.7= 0.75÷=
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=
= 3.6÷0.6=
=
=
×0.87=
÷1.2=
÷
= 0.56×
= 2006﹣619=
= 3.2×
= 0.3×0.4= 2.85+1.5= 73.05﹣3.96=
=
=
= 1÷
×
= 7×
÷7×
﹣
= 8÷0.4=
﹣
=
+
=
﹣
= 7﹣6.38=
+
=
+
=0.22×0.5=
=
=
= 10﹣8.9=
）×24= 42÷
= 2.7×
= 5.2÷10%=
﹣
= 8.73+27=
×3=
×
=
= 5﹣
= 8.4÷0.7= 0.75÷
=