口算：
40×6= 56×4= 130×6= 19×5=
13×5= 12×7= 150×2= 230×4=
180×3= 120×4= 500×10= 140×7=
15×8= 80×9= 210×6= 16×5=
相关试题
口算：
40×6= 56×4= 130×6= 19×5=
13×5= 12×7= 150×2= 230×4=
180×3= 120×4= 500×10= 140×7=
15×8= 80×9= 210×6= 16×5=
=
=（1.01﹣0.91）×15=
=
=
=
= 100÷0.01=
= 1.01×0.8=
=
=
=
÷0.125
÷1
0.25×1
÷3×
+
+
﹣0.625）
=
= 3.9×10%=
=
=
=
=
= 25÷25%=
= 44÷
=
= 2﹣
=
÷2=
=
=．
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