+
= 
+
= 
﹣0.125= 
﹣
= 
+0.3=
= 
×
= 
×
= 
×
= 10×
=相关试题
口算：
3.14×2= 3.14×3= 3.14×4= 3.14×5= 3.14×6=
3.14×7= 3.14×8= 3.14×9= 3.14×2.7= 
+
=
4+
= 2﹣
= 
×
= 6÷
= 
÷5=
×
= 
﹣
= 3.14×2+3.14×0.7= + = ．
0.6×0.7= 2.4×5= 0.5×7.6= 40×0.45= 0.8×0.4=
4.5×5= 3﹣0.54= 0.6×11= 2.4+4.8= 0.45×1000=
0.7÷100= 1×3.12= 12.7+4.3= 0.54﹣0.24= 1.25×80=
3.6+0.45= 2.5×2.4×0.4= 5﹣0.27﹣1.73= 2.8+3.45+1.2= 0.35+99×0.35=
= 
﹣
= 28×20%=
= 1÷
= 36×
= 15÷
=
×
= ； 
÷3= ；
﹣
= ； （
+
）×56= ；
×1÷
= ；
÷
= ； 
×
﹣
）÷3= ．
÷
×
．
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