3.6÷0.4-1.2×5
19.2÷(2.3-0.7)
0.175÷0.25×4
1.2÷0.3= 10.4×0.1= 0.7×0.9= 4×(2.5+0.25)=
0÷0.26= 0.45÷0.9= 0.92÷0.23= 0.57×8×1.25=
1.68×0.15 0.86×0.75
5.88÷0.56 8.84÷1.7
1.5×102 5.5×17.3+2.7×5.5
4.8×99+4.8 15.8÷2.5÷4
0.9+3.6÷4.5
0.75×18÷0.15
9.4×101
54.5×15﹣54.5×5
145+398= 6-0.6= 0.24×50= 3﹣3÷7= (+)×56=
1.25×6×8= = = ÷0.75= ×4÷×4=