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