Oefen erbijsommen en erafsommen tot 12
In de mix
1.
11
9
jimmy
–
=
2.
2
2
jimmy
+
=
3.
2
3
jimmy
+
=
4.
7
2
jimmy
+
=
5.
11
1
jimmy
+
=
6.
11
1
jimmy
+
=
7.
2
5
jimmy
+
=
8.
4
2
jimmy
–
=
9.
3
5
jimmy
+
=
10.
2
9
jimmy
+
=
11.
5
3
jimmy
–
=
12.
9
4
jimmy
–
=
13.
2
3
jimmy
+
=
14.
2
1
jimmy
+
=
15.
2
3
jimmy
+
=
16.
10
1
jimmy
+
=
17.
9
4
jimmy
–
=
18.
5
7
jimmy
+
=
19.
6
4
jimmy
–
=
20.
2
1
jimmy
+
=
21.
3
3
jimmy
+
=
22.
3
2
jimmy
–
=
23.
3
7
jimmy
+
=
24.
8
3
jimmy
–
=
Oefen erbijsommen en erafsommen tot 12
| ANTWOORDEN
In de mix
1.
11
9
2
–
=
2.
2
2
4
+
=
3.
2
3
5
+
=
4.
7
2
9
+
=
5.
11
1
12
+
=
6.
11
1
12
+
=
7.
2
5
7
+
=
8.
4
2
2
–
=
9.
3
5
8
+
=
10.
2
9
11
+
=
11.
5
3
2
–
=
12.
9
4
5
–
=
13.
2
3
5
+
=
14.
2
1
3
+
=
15.
2
3
5
+
=
16.
10
1
11
+
=
17.
9
4
5
–
=
18.
5
7
12
+
=
19.
6
4
2
–
=
20.
2
1
3
+
=
21.
3
3
6
+
=
22.
3
2
1
–
=
23.
3
7
10
+
=
24.
8
3
5
–
=