125×5×8×2=×(5×2)
18+150÷6=
34÷10=
0÷8×9=
87÷3×3=
270+300=
①209+102÷(52-35)
②89+102+11+98
③102×99
④99×49+49
⑤72×125
⑥6800÷25÷4
从前面看是,从上面看是,从左面看是.