Oefen de erbijsommen tot 100

Erbijsommen
1.
35
+
25
=
65
60
70
50
2.
0
+
85
=
90
85
75
95
3.
35
+
5
=
40
35
50
45
4.
5
+
80
=
95
85
80
75
5.
30
+
70
=
90
85
80
100
6.
0
+
80
=
70
80
90
75
7.
0
+
65
=
55
60
65
70
8.
65
+
35
=
85
90
100
80
9.
10
+
65
=
75
65
80
70
10.
95
+
0
=
95
90
80
85
11.
70
+
0
=
70
60
80
65
12.
20
+
0
=
30
10
15
20
13.
15
+
20
=
35
25
45
30
14.
95
+
0
=
80
95
75
90
15.
15
+
60
=
65
75
70
85
16.
0
+
95
=
80
75
95
90
17.
5
+
80
=
85
80
95
90
18.
20
+
10
=
30
40
35
20
19.
100
+
0
=
80
90
100
85
20.
90
+
10
=
85
90
80
100
21.
0
+
25
=
35
20
15
25
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Oefen de erbijsommen tot 100
| ANTWOORDEN

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