650÷50= 9000÷300= 7200÷90=4800÷600= 2400÷80= 2000÷400=
直接写出得数．= 15.2﹣0.9= 50×0.01= 1÷0.1== 12÷35=====
直接写出得数． 708﹣99= 0.25×30= 1÷0.375= 2÷10%=+=×2÷×2= 12﹣1.1= 0.63+0.25+0.37=
直接写出得数． 14÷35== 0.77+0.33== 1.4﹣0.6== 5﹣1.4﹣1.6==
．
直接写出得数． 12+48= 2.4×5= 78﹣0.8= 6.3÷0.1=﹣=+= 8﹣=÷6= 0÷= 10.1﹣1=×15= 2.3×4=+= 6÷=﹣=
= 15.2﹣0.9=
= 12÷35=
=
=
=
=
+
=
×2÷
=
=
=
=
．
﹣
=
+
= 8﹣
=
÷6=
= 10.1﹣1=
×15= 2.3×4=
+
= 6÷
=
﹣
=
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