124×0.92 124 6.4×1.016.4 3.42×13.42 6.56÷6.81 7.6÷1.01 7.6 9.82÷19.82
1.34÷0.25=÷1=
2.8÷0.85○2.8 253.1÷0.1○253.1 ×10
÷=
6.8×2= 4.2×4= 2.1×5= 1.9×0.1= 6×0.5=