4.5元4元5角 15g0.015kg 47.43-14.8612.14 0.650.506 4.3×0.040.43×4 7.26×1.67.26
1.5×0.91.5 3.25×1.13.25
36÷10036×0.01 5.34×1.015.34×1.1
8÷4×5-3=1
改正:
1-0.92= - = ×3.2= ÷ ×5=
3.5+4.28= × = ÷ = 99×0.9+0.9=
0.25×3.2= + = 0.7÷0.01= 9.04+0.6=
-0.375= 13÷91= 10÷20%= 0.81× =