简算：
①57.5﹣14.25﹣15
②102.31×59
③（
×10.68+8.52×
）÷1
④0.1+0.2+0.3+0.4+…+0.9+0.1+0.11+0.12+…+0.98+0.99．
相关试题
简算：
①57.5﹣14.25﹣15 ②102.31×59
③（×10.68+8.52×）÷1 ④0.1+0.2+0.3+0.4+…+0.9+0.1+0.11+0.12+…+0.98+0.99．
+1=
×
=
﹣
=
×
= 104﹣78=
+
=
=
﹣
+
=
= 2.5+
﹣
）×42= 0.25×
×4=
×
= 2.5×40=
×
×0= 5.2÷0.125÷8=
= 5.6÷0.08=
=
=1.25÷（10%÷10）=
÷0.75=
=
= 1÷3×
= 9×
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