口算．
0.68+0.06= 5.2+0.48= 1﹣0.73= 3.6+4.8= 0.78﹣0.28= 20.9﹣9.7=
10﹣0.09= 3.8+0.12= 0.01+0.1= 4.9+5.1= 4.7﹣0.47= 8.7﹣7.8=
相关试题
口算．
0.68+0.06= 5.2+0.48= 1﹣0.73= 3.6+4.8= 0.78﹣0.28= 20.9﹣9.7=
10﹣0.09= 3.8+0.12= 0.01+0.1= 4.9+5.1= 4.7﹣0.47= 8.7﹣7.8=
= 25÷
=
= 
= 12
=
= 
= 1﹣
=
÷4= 14×
= 
÷
= 
÷
= 4﹣
= （
+
）×8=
÷
= 0÷
= 40×5%=
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