直接写出得数．218+682= 0.3÷0.6= 7.8﹣3.6= 0.625×100=÷2= ﹣= ×= （﹣）×24=
﹣= += 1﹣=+= 1﹣= +=
填一填．
直接写得数．+= ﹣= 0.2﹣=+= ﹣= +2÷9=2﹣﹣= 1.55﹣= 1﹣﹣+=0.5﹣﹣=
计算．= = == = 1﹣== =
看图计算下面各题．+= +=
÷2= 
﹣
= 
×
）×24=
﹣
= 
+
= 1﹣
=
+
= 1﹣
= 
+
+
= 
﹣
= 0.2﹣
=
+
= 
﹣
= 
+2÷9=
﹣
= 1.55﹣
+
=
= 
= 
=
= 
= 1﹣
=
= 
=
+
=
+
=
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