的加减法.ppt

文档介绍：10的加减法
1
9
4
10
7
10
2
10
同学们,你们能看图写几道算式?
+
=
-
=
9
1
1
10
+
=
-
=
1
9
9
1
10
10
10
9
同学们,你们能看图写几道算式?
+
=
-
=
8
2
2
10
+
=
-
=
2
8
8
2
10
10
10
10
8
同学们,你们能看图写几道算式?
+
=
-
=
7
3
3
10
+
=
-
=
3
7
7
3
10
10
10
10
7
同学们,你们能看图写几道算式?
+
=
-
=
6
4
4
10
+
=
-
=
4
6
6
4
10
10
10
10
6
5 + 5 = 10
10 - 5 =5
找朋友!哪两个数合起来是10
1
6
5
4
3
2
9
8
7
5