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