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