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