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