28+4= 37-8= 4×4= 6×6=
53+7= 2×5= 99-9= 6×3=
73-(65-60)= 54-(34 + 6)= 5×4-16= 6×3+20 =
(个)
9×5= 7×2= 6×8= 3+6= 6×9=
5×3= 8×4= 0÷7= 4×7= 67-34=
5×6+5= 7×7-9= 8×3+6= 7×4-9= 3×6+5=
12÷6= 10÷2= 30÷5= 24÷4=
4÷1= 16÷4= 12÷3= 30÷6=
36+30= 49-29= 61-4= 50+50= 25-5+40=
5+48= 54-11= 98-80= 100-70= 73-(4+5)=
信息1:
信息2:
9.9×5.9 60 1