(7.2-3.15)÷0.6×1.396.5×43.5+43.5×28.5-25×43.5
(+一)×48
12.5×16×3.8
4935÷47+5.4×8.5
直接写出得数。206+ 598= 10-= 27×= 0.64÷0.08=-= ÷= 3.6×0.25×4= 0.25×4=3.6×1= 11.75-1.7= ÷50%= 0.56×=
×(+0.8÷)