15%+25%=
1-35%=
50×60%=
10÷5%=
40%×80%=
120÷20%=
150×24%=
3.5÷70%=
①
②
③2.7-3x=
×2= ÷5= 7.8× = × ×0=
÷ = ×1.4= 10÷0.1= ( - )÷ =
3.14×52= -0.6= + ×7= x ÷ ÷ =
×14= × = 7.2÷ = 24÷ =
0.36× = ÷4= = =
1÷-÷1= ×= 40%:08= 8÷×= 12×(-)=
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