文档介绍：
可编辑可修改
×4=
0. 07
×=
33×=
× 4=
×=
15
×=
×=
×=
54×=
×=
×=
×100=
×=
×=
25
×=
×=
6×=
×=
×=
×=
×=
×=
×=
×20=
×=
3
×=
×=
×=
×=
23
×=
×100=
×2=
×10=
0
×=
× 4=
× =
×=
60
×=
×=
×8=
=
=
19+=
=
+=
=
+=
5×400=
+=
187÷1000=
1+=
×10=
75÷10=
÷8=
×7=
×7=
×8=
×8=
×2=
5×=
×=
×=
×0=
10×=
×7=
×100=
×4=
×4=
4×=
430-250=
+=
+=
17×300=
+=
600×=
+=
+=
670+250=
+=
=
8500÷500=
+=
25×100=
1
可编辑可修改
2+=
380-290=
+=
+=
3500÷70=
+3=
+=
7500÷250=
+1=
450+780=
+=
3+=
630÷9=
330×9=
=
+=
+=
+4=
=
+=
+=
+=
23×100=
480÷40=
÷100=
+=
125×80=
÷10=
+=
70×12=
×100=
×10=
10+=
=
×1000=
+=+=
×100=
63÷100=
80÷1000=
+=
+=
+=
5+=
=
+=
+=
+=
+=
=
=
+=
+=
10+=
+=
+=
=
+=
×8=
×4=
×0=
×50=
30×=
×3=
×2=
×=
×=
×2=
×10=
×8=
×10=
×=
+=
2
可编辑可修改
+=
×2=
×=
6×=
×100=
×=
×=
×100=
÷=
×8=
÷2=
÷28=
÷=
×9=
÷24=
×=
÷4=
÷13=
+=
10÷20=
24÷15=
×=
+=
×2=
－ =
×=
6×=
－=
×=
×100=
×=
÷=
÷7=
÷100=
÷=