①408÷6=
②702÷6=
③380÷4=
④812÷4=
⑤536÷5=
⑥702÷3=
11×8=
501-199≈
395+204≈
66÷3=
300÷6=
202×7≈
28÷2=
105×5=
①
②
③
④
⑤
⑥
①600-289=
②*389+172=
③*739+286=
④350+220=
⑤*405-223=
⑥*810-467=