不要口算,如8/9+8/2
不会的请闪开。
最好可简便计算
9/8+8/7=
12/8+6/5=
2/9+5/8=
2/3+4/5=
12/5-3/4=
5/8-6/8=
2/5-6/8=
5/8-6/4=
2/5+6/5=
9/8+3/9=
15/8+6/15=
13/8+12/9=
14/8+12/9=
3/8+6/5=
9/8+5/8=
12/8+9/75=
15/8+15/9=
25/8+48/58=
15/8-12/8=
14/6-12/8=
15/8-14/9=
14/8-15/9=
12/5-15/8=
13/8-14/9=
13/9-1/6=
12/8-69/8=
14/7-15/8=
25/8-15/9=
14/8-15/6=
15/6-45/8=
45/8-14/8=
15/6-15/8=
19/2-18/4=
15/8-19/2=
15/8-16/9=
19/4-18/7=
12/8+14/8=
15/8+/48/7=
69/8+1/8=
48/9+12/9=
14/8+48/5=
15/6+15/9=
10/8+45/8=
12/9-14/7=
16/8-96/5=
25/8-25/9=
58/7-58/9=
69/8-15/8=
14/8-16/8=
68/7-48/5=
58/5+58/7=
25/8-26/8=
25/8+36/5=
12/5+36/8=
25/8-26/8=
14/8-58/7=
12/5-14/8=
36/4-25/8=
36/8-69/8=
25/8-36/9=
12/8+6/5=
2/9+5/8=
2/3+4/5=
12/5-3/4=
5/8-6/8=
2/5-6/8=
5/8-6/4=
2/5+6/5=
9/8+3/9=
15/8+6/15=
13/8+12/9=
14/8+12/9=
3/8+6/5=
9/8+5/8=
12/8+9/75=
15/8+15/9=
25/8+48/58=
15/8-12/8=
14/6-12/8=
15/8-14/9=
14/8-15/9=
12/5-15/8=
13/8-14/9=
13/9-1/6=
12/8-69/8=
14/7-15/8=
25/8-15/9=
14/8-15/6=
15/6-45/8=
45/8-14/8=
15/6-15/8=
19/2-18/4=
15/8-19/2=
15/8-16/9=
19/4-18/7=
12/8+14/8=
15/8+/48/7=
69/8+1/8=
48/9+12/9=
14/8+48/5=
15/6+15/9=
10/8+45/8=
12/9-14/7=
16/8-96/5=
25/8-25/9=
58/7-58/9=
69/8-15/8=
14/8-16/8=
68/7-48/5=
58/5+58/7=
25/8-26/8=
25/8+36/5=
12/5+36/8=
25/8-26/8=
14/8-58/7=
12/5-14/8=
36/4-25/8=
36/8-69/8=
25/8-36/9=
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