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