0.2×0.14﹦0.028, 3.4+1.6=5, 0.73-0.3﹦0.43, 7.1+1.09=8.19, 3.5×20﹦70,
30÷0.6=50, 20-19.3=0.7, 0.36÷1.2=0.3, 1.2×0.4+0.4×1.3=1, 4×0.5÷4×0.5=0.25.
0.2×0.14﹦0.028, 3.4+1.6=5, 0.73-0.3﹦0.43, 7.1+1.09=8.19, 3.5×20﹦70,
30÷0.6=50, 20-19.3=0.7, 0.36÷1.2=0.3, 1.2×0.4+0.4×1.3=1, 4×0.5÷4×0.5=0.25.