×8<57 ×5<36 64>×7
6×4= 24÷6= 40+6= 44-7= 64÷8=
5×9= 36÷6= 20÷6= 32÷4= 54-49=
①81÷9=
②6×8=
③35÷7=
④67-26+17
⑤38+29+20
⑥100-(47+28)