看图列式。列式：
怎样简便就怎样算×72﹣×23 ×25×40×．
能简算的要简算（+）÷÷+×842000÷125÷8 ×[﹣（+）]．
口算：= = = == = = =
计算下列题 ．
简算．×4+57×（0.85+0.85+0.85+0.85）×2.5．
×72﹣
×25×40×
．
+
）÷
÷
+
×8
×[
﹣（
+
）]．
= 
= 
= 
=
= 
= 
= 
=
．
×4+
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