________ 
________ 
________ 
________ 
________ 
________ 
________ 
________ 
________ 
=________ 
=________。 
=________ 
=________ 2÷ =________ 2+ =________ 2﹣ =________
÷ =_______ 0÷ 
=_______ 
+25%=_______ 1.2+40%=________ 
________ 
________ 
________ 
_______ 
________ 0× 
=________ 
÷3=_______ 
×14=_______ 
=_______ 
2－
－
－﹙－
﹚ 
搜索
