26÷2=
140÷7=
4500÷15=
480÷80=
81÷3=
125×8=
7200÷90=
800÷40=
66÷6=
120÷2=
3500÷70=
4400÷20=
①40×25=
②280÷7
③142+68=
④88+0÷22=
⑤39×203≈
⑥4500÷900=
⑦5×307=
⑧1200÷60=
⑨7200÷(60+12)=
⑩558÷78≈
洗衣机:485元/台电风扇:290元/台电视机:850元/台
0.25×28= 500×1%= 0.81× = 0.32-0.22=
8×4÷8×4= 1÷3× = 0.8÷0.01= 98÷22=