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