文档介绍：×5 ﹦ × =
×5= ×=
× = ×8=
× = ×5=
× = ×7=
53×2 = 55×3=
×= ＋=
＋= =
×25= ×5=
×=
×= 8×5 =
= ×42=
××=
1××11=
××=
××=
×= 3×=
12××=
3××=
××=
××5=
××=
××18=
××＝
××＝
99××＝
××12＝
××× =
××＝
= ×=
××=
×0×35=
××=
××=
××5 =
1××=
×= =
×5＝
1××＝
××＝
××＝ 9×＝
××8＝
××2＝
×××＝
×××21＝
××= ＋＋=
×××=
47×= －=
×80= ×=
-= 8- =
× = ×6=
×= ×=
×= × =
× = ×5=_
× = ×=
××=
× 88 = ××6=
× 35 = ×=
× 48= 52× =
-- = =
= =
× 4 = + =
× 6 ×=
×× =
×= × =
××=
200×＝ 12-＝
××＝
××＝
×11＝
××=
==
× =
×= ×4＝
5×＝ ＋＝
×4＝ ×100＝
×10＝ ×1000＝
×100＝ ×＝
×＝ ×＝
×＝ ×＝
×＝ ×25＝
×＝ －＝
＋＝ ＋＝
＋＝ －＝
×4＝ ×＝
＋＝ ×＝
×4＝ ×10＝
×8＝ ×＝
0×＝ 77×＝
12－＝ －＝
×＝ ×＝
×3= ×(5×)=