①a×0.6②a÷0.6③a×0.8④a÷0.8
9.3×0.18= ★4.88×5.2≈
8.74÷3.8= ※0.432÷0.24=
2.4×0.2=
0.8×1.1=
0.16×0.5=
4.2÷0.02=
9÷0.3=
0.63×0=
9.9÷1.1=
1.07×6=
1.89÷0.3=
0.4×1.25=
0.25÷2.5=
1.25×0.8=
3.9÷0.1=
0.24×0.5=
3.6+4=
0.25×4÷0.25×4=
3.3×6.9=22.77
3.33 ×66.9=222.777
3.333×666.9=
......
88.83÷9=9.87
88.884÷9=9.876
96-69= 0.72+2.8= 0.125×0.8= 0.32÷0.1=
4× ÷4× = 7÷ = 1- =
403×19= -80%= ( - )×12=
687+95= 0.46+4.9=
0.5×2.4= 0.84÷0.7= 2.6× =
1.25× ×8=