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