547+198=
0.6-0.28=
5.5×=
3.6÷0.36=
7.7÷=
=
×5÷×5=
+×+ 7.5×+2.5÷
2.4×(1.01-0.88)÷0.52 1.2+〔(0.5-)×1.8〕
8.4÷0.1=
0.47×0=
16×25%=
2.64+4.36=
357÷50≈
3.3÷3= 9.1÷0.7= 24.8÷0.4=
0.24÷0.2= 14÷5= 0.57÷3=
÷= ×= 18÷= ×=
:= 75kg:= :15分=
1.6×= 0.72-0.12=
7÷= 40%×5=
综合算式: