直接写出得数．
+
= 0.5+1.9= 7.3﹣3.6= 30×23=
70×80= 460÷2= 
﹣= 15÷3+15=
380÷2= 0÷12= 24×50= 45﹣5×4=
45×40= 67÷9= 8.7﹣7.8= 193×0+3=
直接写出得数．+= 0.5+1.9= 7.3﹣3.6= 30×23=
70×80= 460÷2= ﹣= 15÷3+15=
380÷2= 0÷12= 24×50= 45﹣5×4=
45×40= 67÷9= 8.7﹣7.8= 193×0+3=
+
=
﹣
=
﹣
= 1﹣
=
﹣
=
+
=
．
+
= 43×200= 1﹣
= 350+50=
+
= 45﹣9×5=
﹣
=
﹣
=
+
=
+
﹣
=
=
﹣
=
+
=
﹣
=
+
=
+
= 1﹣
﹣
=
﹣
=
+
= 1﹣
=
﹣
+
=
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