Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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