下面这块长方形绿地的宽要增加到24米．长不变，扩大后的绿 地面积是多少平方米？
直接写出得数 +=﹣= 12×=×14= 20÷=×= 0×=÷=÷×12= 14×÷14×=
直接写出得数 1÷=+=÷=÷=×=+0.8=÷1=×=+=﹣= 24÷=÷=
计算×=÷=××÷6÷÷× 15×÷××16÷÷．
直接写得数 67÷31= 3.6×= 57×﹣=×0= 3÷=0.75+= 6.3÷= 120×=
直接写出下列各题的得数． 99×0= 2.5×0.4= 7.4﹣0.8=×=÷= 1÷=×50%= 2÷1.25=
+
=
﹣
= 12×
=
×14= 20÷
=
×
= 0×
=
÷
=
÷
×12= 14×
÷14×
=
+
=
÷
=
÷
×
=
+0.8=
÷1=
×
=
+
=
﹣
=
=
×
=
÷
=
×
×
÷6÷
÷
15×
÷
×
×16
÷
÷
．
= 57×
﹣
×0=
=0.75+
= 6.3÷
= 120×
=
×
=
÷
= 1÷
=
×50%= 2÷1.25=
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