Oefen erbijsommen en erafsommen tot 12
In de mix
1.
2
1
jimmy
+
=
2.
4
3
jimmy
–
=
3.
6
4
jimmy
+
=
4.
2
0
jimmy
+
=
5.
7
5
jimmy
–
=
6.
12
10
jimmy
–
=
7.
8
5
jimmy
–
=
8.
4
3
jimmy
–
=
9.
11
3
jimmy
–
=
10.
5
7
jimmy
+
=
11.
3
9
jimmy
+
=
12.
6
1
jimmy
+
=
13.
5
2
jimmy
+
=
14.
9
6
jimmy
–
=
15.
3
2
jimmy
–
=
16.
3
2
jimmy
–
=
17.
4
1
jimmy
+
=
18.
4
2
jimmy
–
=
19.
4
6
jimmy
+
=
20.
3
9
jimmy
+
=
21.
9
1
jimmy
+
=
22.
11
9
jimmy
–
=
23.
4
3
jimmy
–
=
24.
11
2
jimmy
–
=
Oefen erbijsommen en erafsommen tot 12
| ANTWOORDEN
In de mix
1.
2
1
3
+
=
2.
4
3
1
–
=
3.
6
4
10
+
=
4.
2
0
2
+
=
5.
7
5
2
–
=
6.
12
10
2
–
=
7.
8
5
3
–
=
8.
4
3
1
–
=
9.
11
3
8
–
=
10.
5
7
12
+
=
11.
3
9
12
+
=
12.
6
1
7
+
=
13.
5
2
7
+
=
14.
9
6
3
–
=
15.
3
2
1
–
=
16.
3
2
1
–
=
17.
4
1
5
+
=
18.
4
2
2
–
=
19.
4
6
10
+
=
20.
3
9
12
+
=
21.
9
1
10
+
=
22.
11
9
2
–
=
23.
4
3
1
–
=
24.
11
2
9
–
=