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