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