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