62-5= 7×8= 63÷9= 25+15÷5=
42÷7= 25÷5= 56+8= 32÷(10-2)=
56+16÷8
54÷9×7
(32+22)÷9
64﹣42÷7
71÷8= 29÷4= 17÷3= 75÷9=