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