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