口算：
125×8= 300÷12= 450×20= 300﹣82=
299+63= 13×4+17×4= 12.6×1000= 81.6÷1000=
2.03×10= 6.6÷100= 63÷7÷9= 101×25=
相关试题
口算：
125×8= 300÷12= 450×20= 300﹣82=
299+63= 13×4+17×4= 12.6×1000= 81.6÷1000=
2.03×10= 6.6÷100= 63÷7÷9= 101×25=
= 1.25×7+1.25=
÷5×
×43=
×
”，并涂上颜色．
×1.8= 
= 
= 7.8÷0.01=
×
= 
×1.2= 32×1
= 
×
÷
×
=
+
）= 
+21÷56= 1252﹣998=
×
=
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