0.8×4= 0.25×0.4= 5.3-1.7= 9.8÷ 100= 0.72÷0.8=
6×0.5= 3.6÷0.09= 10×3.75= 0.32= 2y+7y=
2.4÷30=
1.21÷1.1=
0.63÷9=
4.2÷3=
0.13×5=
32.8÷4=
1.8×0.6=
4.4×0.9=
1.44÷12=
23.7÷30=
=
①2.5×3.8×0.4
②3.47×12.4-3.47×2.4
③0.49×101
④0.125×32
⑤27.9×99+27.9
⑥4.53+5.47×0.4
72.5-2.07÷23
5.07×3.6+9.4
4.61×0.9÷4.61
7.9×(3.64÷2.6)
4.2+3.6÷60
0.2×[(0.65+0.75)÷0.25]