直接写得数1﹣0.95= 0.36+2.4= 8×30%= 2.1÷70%= 9.9+0.1÷0.1=+= ×6%= 12×(+﹣)= 0.25×1.92×0.4= 12π=
( +一)×48
12.5×16×3.8
4935÷47+5.4×8.5
0.56×=
÷50%=