×8=
÷=
5-=
×÷×=
12.3÷0.1=
140÷70%=
0.41-0.32=
0.8a+0.5a=
0.4×25%=
0.27+0.73=
0.5÷0.01=
0.99÷0.11=
6-6÷7=
①125%×32×25% ② ③