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