28÷2=
69÷3=
82÷2=
55÷5=
84÷4=
99÷3=
88÷4=
42÷2=
36÷3=
①0.3+4.6=
②28×20=
③81×10=
④360÷4=
⑤11-0.8=
⑥350÷7=
⑦301÷6≈
⑧98×18≈
38×56 = ★332÷4 = ★268÷6 =