口算：
5.7+6.3= 20.05+0.4= 34.6﹣4.9= 9﹣4.2=
5.5÷11= 8.2÷100= 5.783×1000= 2.5×4=
0.01×8= 12﹣1.2= 4.7×0×0.4= 125×1.7×0.8=
相关试题
= 19÷
=
﹣
=
×
=
=
=
直接写出得数．
2306+400= 101﹣52=
×
=（0.25）2=
7.4﹣4=
×30%= 6÷17= 0.3+5=
1÷
= 41.64÷6.9≈ 0.24÷0.8=
÷2=
直接写出得数
37+45= 24÷100= 1.5×40= 0.2×0.8=
1﹣0.16= 2.3+3.5= 3.2÷32= 18×30=
= 1﹣
=
=
÷3=
+0.125= 2÷
×
×
= 1÷
= 0.7：0.25=
+
=
小时=
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