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