×16= 12÷ = × =
0× + = 1÷ = ÷ =
÷ = × ÷ × =
×20= ÷= 10÷= 0.6×=
1÷= ×= ÷= ÷=
=
÷5%=
10%×5=
1÷25%=
20×= 36÷= -= 1÷=
40×20%= 3.14×3= 12.56÷3.14= 1-÷=
×= 1÷25%=
3.7+0.25= ÷5= 2.4÷0.2=
1.02-0.47= 1.6×10%=
×100= ÷ = 0.75× = ÷ = ×0÷ =
6÷ = ÷2= 75× = × = 时:80分钟=