口算：
÷62.5%=
÷8= 1.8÷
= 0.375+
﹣0.01=
×
÷×=
0.25×4÷
=
×
÷×= 19÷
= 0.125×
×8= 6.4×﹙1
﹣1.25﹚=
直接写得数
36+48= 920﹣460= 570÷10= 12.5÷0.5=
4﹣2.4= 0.125×8= 3.6×25%=
×
=
3.5+4.7= 0.23÷0.1=
÷3=÷
=
直接写得数．
1÷
=
×
=
+
= 2﹣
=
4.2×0.5= 0.25×0.6= 246+198=
﹣
=
=
=
= 84.6+4=
= 10÷0.5=
= 603×39≈
4980÷51≈ 9.3÷0.03=
÷2÷= 9﹣
﹣
．
在图中请用你喜欢的颜色涂出
吨的大小．
直接写出得数
2000﹣1009=
6.98+2.1=
8÷
=
1.2×5%=
（2m）2=
