Oefen de erbijsommen tot 100

Erbijsommen
1.
10
+
80
=
75
90
70
80
2.
5
+
95
=
85
100
90
95
3.
60
+
30
=
75
70
90
80
4.
85
+
5
=
90
85
75
80
5.
0
+
95
=
90
85
75
95
6.
75
+
0
=
75
85
70
80
7.
30
+
70
=
85
80
100
90
8.
60
+
40
=
95
100
85
80
9.
15
+
25
=
35
30
45
40
10.
15
+
75
=
80
75
90
70
11.
100
+
0
=
80
100
95
90
12.
25
+
50
=
65
85
75
80
13.
50
+
10
=
55
65
50
60
14.
50
+
30
=
80
85
70
75
15.
55
+
5
=
60
65
50
55
16.
35
+
55
=
70
80
90
75
17.
15
+
75
=
80
85
70
90
18.
0
+
80
=
85
90
80
75
19.
85
+
15
=
100
90
85
95
20.
30
+
65
=
80
90
95
75
21.
50
+
10
=
65
60
50
70
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen

Oefen de erbijsommen tot 100
| ANTWOORDEN

Erbijsommen
1.
10
+
80
=
75
90
70
80
2.
5
+
95
=
85
100
90
95
3.
60
+
30
=
75
70
90
80
4.
85
+
5
=
90
85
75
80
5.
0
+
95
=
90
85
75
95
6.
75
+
0
=
75
85
70
80
7.
30
+
70
=
85
80
100
90
8.
60
+
40
=
95
100
85
80
9.
15
+
25
=
35
30
45
40
10.
15
+
75
=
80
75
90
70
11.
100
+
0
=
80
100
95
90
12.
25
+
50
=
65
85
75
80
13.
50
+
10
=
55
65
50
60
14.
50
+
30
=
80
85
70
75
15.
55
+
5
=
60
65
50
55
16.
35
+
55
=
70
80
90
75
17.
15
+
75
=
80
85
70
90
18.
0
+
80
=
85
90
80
75
19.
85
+
15
=
100
90
85
95
20.
30
+
65
=
80
90
95
75
21.
50
+
10
=
65
60
50
70
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen