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