小数加减乘除计算.doc

文档介绍：加减法
-= 1
1-=

＋=
＋=
1-=
-=
-= 1
-=
+=1
+ =
6 -=
-=
+ =
-3=
-=
－=
+=
-=
+=
-99=
+=
+=6
-=
+=
+=
+=10
+=
+=

+=

+=

88－ =

－ =

－=

－ 105=
-=
-=
-=
-=
乘除法
× =

× =1
× =
×=
10
×=

×=
×7=

×=

× =
×4=

×=
×=
× 100=
× 10=8

× 100=408
× =

× =
3
× =
×= 1

×=

× 8= 100
50× =2
80
× =

×9=

×=

×100= 105

×8＝100

×= 1

×5= 12

×4=

×=

× 13=

×15=

×=
×14= ×