198﹣600÷25×4 3.2×1.25×25 ×17﹣9÷
÷[+(2-)] (+-)×42
①16.8﹣7.2﹣6.8
② × + ×
③ ÷[( - )× ]
80×3.8×0.125 8.5﹣(5.6+4.8)÷1.3
A.(1,1)
B.(3,1)
C.(3,2)