Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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