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