5÷(1+)= 4×0.5= 0.75×= 1﹣1×=
+×= 24÷= ×0.25= +=
10﹣= 1﹣×= ×6÷×6= 1÷×=
0.375×0.375= 1 ÷12.5%=
×16= 12÷ = × = 0× + = ×4× =
1÷ = ÷ = ÷ = + × = × ÷ × =
(+)×6= ÷= += -= ÷21= ÷×=
3.14×6= 2×3.14×12= + =
0÷20%= 60×30%= 25÷40%=
36× = ÷ = 3× ÷3× =
×9= = ÷4= =
写出三个是5的倍数的奇数:,,。