18+23+9=
53-17-22=
34+15-13=
4×4= 34+6= 0+7= 5×5-7=
52-9= 7×8= 4×3= 4×2+7=
5×9= 4×6= 5×2= 3×6-8=
5×5=
7×8=
100-95=
7×( )=49
6×2=
4×4=
7×6-24=
( )×8=72
9×9=
8×3=
6×6+1=
5+6=
2×8-1=
3×9-4=
5×5-5=
26-4×5=
4×6+3=
9×7+5=
4×6+5=
1×7-7=
13+48+29=
82-37-19=
46+54-23=
73-38+16=
10千克及以内,每千克9.6元
超过10千克的部分,每千克8.4元
341-29= 5.7+1.24= -0.25= × =
3.2÷80%= ÷ = ×0+ = 12.5×8÷12.5×8=