(1)66+8= | (2)47-8= | (3)25×4= | (4)56÷4= | (5)3.07÷3= | (6)471-299= | (7)600÷5= | (8)1.06×8= | (9)6.6+4= | (10)1-0.05= | (11)3.8+6.2= | (12)3.8÷0.19= | (13)0.1+0.1÷0.1 | (14)24×0.5= | (15)1.8÷0.2= | (16)1÷0.25= | (17)8-0.8= | (18)1.5×0.6= | (19)1.5÷0.3= | (20)×4= | (21)×= | (22)12÷= | (23)-= | (24)1-= | (25)+= | (26)×= | (27)+= | (28)-= | (29)÷= | (30)+= |
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