①40×300=②540÷ 90=③159-74-26=④930÷30=
⑤120×60=⑥422÷71≈⑦218+82×0=⑧50×2÷50×2=
50×40=
150÷30=
125×8=
15×6÷15×6=
5600÷70=
27+133=
301×39≈
500÷50×2=
240÷3÷4240÷(3×4)
150-100-25150-(100+50)
30×8+230×(8+2)
960÷24960÷8÷3