文档介绍：+=
-=
+=
×=
+3=
-=
÷=
+=
+=
+=
-=
+=
7-=
+=
+=
×5=
-+=
1+-1+56÷=
+-=
+=
-=
-=
++=
++=
+8=
-=
1-=
-=
+=
360÷90=
+=
+=
64÷=
+=
-=
226-98=
-=
÷=
121÷11=
+=
6÷5=
÷=
10÷=
+=
6-(+)=
4-=
+=
+=
-=
+=
-=
+=
+=
×=
6÷=
×36=
×8=
÷=
÷3=
×=
×30=
×=
10÷=
×=
2÷=
×4=
÷=
10÷=
-×2=
128÷64=
410-220=
×99+=
+=
-=
7÷=
×81=
÷8=
÷=
+=
÷=
÷7=
10-=
3005-900=
÷=
×=
+=
÷26=
125×9×8=
7-=
×=
6×=
÷17=
×6=
÷=
×9=
×6=
220÷100=
×8=
÷=
×2×100=
×=
÷=
×=
×=
7÷=
16×6=
×=
128÷=
×=
82×3=
÷3=
÷14=
÷=
×7=
×26=
288÷144=
÷=
108÷54=
84×2=
1--=
++=
÷=
×=
341+121=
÷=
88+123=
+=
+=
×4=
34×=
÷=
16×4×=
÷×5=
÷=
÷=
62×16-6×62=
150×%=
1-37%-13%=
5÷8=
÷=
×=
100-=
4×+3=
×=
÷=
×99=
+=
÷=
+=
÷=
÷2=
÷=
÷=
++=
÷=
×(4+40)=
÷5=
278-44=
184+125=
--=
+-=
÷=
+×=
--=
%×5×20=
100×%×3=
×16=
95×=
3×-×3=
-=
÷=
÷+=
÷=
25÷8÷=
+=
×3=
×=
÷=
×24=
÷=
×÷=
÷-=
196+205=
2-=
-=
8÷=
÷7×=
×5=
19%+71%=
÷100=
÷=
0÷×4=
240-21=
90+107=
÷=
16×3×=
÷(44+33)=
189+199=
×7÷×7=
241-201=
1÷(10-)=
×7+7×=
+3=
÷=
121÷11=
+=
(+)×24=
-×=
(+)×0=
3÷=
÷=
+19+=
×3×4=
×3=
×1000=
10000×%=
×2=
423-141=
128+214=
+=
+=
×9=
÷=
100×=
357-159=
488-355=
×=
38÷=
10×9÷15=
×9=
÷=
÷=
3+×9=
1200-198=
6×=
3×=
××4=
10÷=
4-=