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