数学 口算

2024-03-27 02:10

2/3+1/4=2/5-2/9=42×1/2=1/2÷1/4=4/5×5/9=9/13×1/18=2/3÷4=1/2÷6=... 2/3+1/4= 2/5-2/9= 42×1/2= 1/2÷1/4= 4/5×5/9= 9/13×1/18= 2/3÷4= 1/2÷6= 展开
2024-03-27 05:43
11/12 8/45 21 2 4/9 1/26 1/6 1/12
热门问答