相关试题
口算．
500×2= 400×5= 7×30= 28÷7=
40÷5= 53+7= 28÷4= 49+6=
100﹣49= 3600÷3= 47﹣28= 32÷8=
230×7= 55×4= 789×0= 500×8=
1﹣
= 
+
= 
﹣
= 
+
=
=
=
）×12= 18
÷9=直接写出复数．
736+198= 465﹣199=
×
= 11﹣1.1=
﹣
=
÷
=
10.2+8%= 1÷0.5%= 8.9×11﹣8.9= 0.1×10÷0.1×10= 597×8≈ 6287÷7≈
= 3÷7= 3.6÷0.9= 0.5+
=
+
+
= 43=
÷
=
﹣
=
×
= 1+30%=
+
=
= 0.47+0.38= 0.52=
÷
×
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