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