Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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