0.25﹣0.18=
3 ×4=
0.3×400=
39.5÷8=
×10=
÷ =
52=
268+332=
0.68+19.6= = 0.56÷0.4= 0.125×8=
12= 0.22×200= 100﹣0.86= =
×= 0.54÷6= ÷= 2.6×0.3= 27.8﹣1.9=
10-6=
×2.4=
8.4÷40%=
-÷=
72×=
3.1-3.01=
721÷89≈
0.25×4÷0.25×4=