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