文档介绍：标准文档
24÷15=
÷=
-=
×10=
1÷=
-=
×=
×=
－ =
×14=
÷=
=
9+18=
÷ 24=
+19=
+=
× =
=
+=
+=
25+15=
×2=
÷4=
47-17=
－=
÷ 13=
58+18=
×=
÷5=
19+28=
6×=
÷41=
2/1x2=
－=
10÷20=
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24÷15=
÷ =
× 8=
×10=
1÷=
×2=
×=
×=
5×=
×=
÷=
× =
×1000=
0÷=
×=
×=
×102=
×0=
×=
9÷ ÷4=
10×=
÷=
× ×4=
×7=
÷9=
（ ＋ ）× =
1×100=
÷=
-=
×4=
÷2=
-=
×4=
÷=
68+=
4×=
÷=
-=
430-250=
×100=
1-=
7200÷800=
×8=
+=
+=
÷=
1+=
17×300=
×4=
×10=
-=
×=
75÷10=
600×700=
÷=
÷=
+=
×=
×7=
670+250=
×=
×7=
8500÷500=
×=
×8=
-=
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25×100=
+=
-=
-=
+=
63÷100=
380-290=
23×100=
-=
3500÷70=
-=
+=
+3=
480÷40=
80÷1000=
7500÷250=
÷100=
+=
+1=
+=
-=
-=
125×80=
30×100=
450+780=
÷10=
-=
3+=
+=
+=
630÷9=
70×12=
+=
-=
×100=
5+=
-5=
-=
1-=
330×9=
-=
+=
-=
×10=
+=
+=
10+=
+=
1-=
1-=
+=
+=
×1000=
1-=
+=
+=
8-=
+4=
+=
-=
4-=
×100=
+=
+=
-=
+=
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标准文档
-=
÷=
÷=
-=
÷24=
×100=
-=
×=
×8=
-=
7.