49+25= 600+900= 48÷9= 7×9=
(18-9)×2=
72-38=
3000-1500=
72÷8=
6×8=
6+54÷6=
39-(8+12) 42-32÷8 16+4+2
92-38-12 35+14÷7 32÷(8÷2) 72÷(27-19)