0.9×0.8=
0.8×1.2=
0.12×50=
60×0.8=
1.8×0.04=
0.15×0.4=
1.3×0.004=
5.8-0.8×5=
43×1.02 43 57×0.9657 8.8×2 8.8+8
1.36×0.981.36 2.21÷12.21 1.8÷0.91.8×0.9
+ = 50÷50%= = 3 -1.125=
1.9÷2.5÷0.4= ( )×18= = 1- =