9.5-1.05 = 0.8- = ×0=
2.5+0.5=
0.07×10=
1-0.25=
4.5-1.09=
0.4×5=
12.4n-4n=
0.16÷0.4=
2.4×0.5=
4÷0.05=
0.32=
1- =
2- =
1.79+8.11= 21.5+9.5= 2.5×0.4= 2-0.01=
0.48÷0.05= 0.47÷0.001= 12.5×1.6= 0.032=
8.1-2.7= 3.6×2.5= 2÷0.5= 0.81+0.3=
0.32= 7.8a-2.3a-0.7a= - = + =
A.(1,1)
B.(3,1)
C.(3,2)