2×0.6×5=
2×2.8×0=
1.2×4+1.2=
3-4×0.6=
1.3×（2.5+2.5）=
1.6×3-2.1=
6×0.8-0.8=
0.6×8+5=
（1.7+2.3）×0.6=
0.25×3.7×40 7.86×99＋7.86
①2.8×3.6+1.4×2.8
②4.75×101
③3.17×1.2＋1.83
④4.95-14.82÷7.6
⑤12.5×16×2.5
①2×0.7×1.5
②0.81×10×0.1
③5×0.2×1.3
④3.1×3×0.4
197+298= 3.6÷12= 1.25×80= 4.5×9+4.5=
0.8-0.35= 0.3×0.2= 0.8÷0.01= 0.7×0.7÷0.7×0.7=
7.2+1.8= 5×0.24= 0.06×0.5= 6.4-0.34-1.66=
5-0.5= 4.54+3.6= 9.5÷100= 4×7×0.25=
1.2÷0.3= 10.4×0.1=
0.92÷0.23= 0÷0.26=
0.45÷0.9= 4×（2.5+0.25）=
0.57×8×1.25= 1.58×99+1.58=