Oefen de erbijsommen tot 100

Erbijsommen
1.
45
+
45
=
2.
10
+
60
=
3.
15
+
65
=
4.
25
+
70
=
5.
10
+
70
=
6.
30
+
35
=
7.
30
+
35
=
8.
5
+
15
=
9.
15
+
25
=
10.
30
+
50
=
11.
10
+
50
=
12.
25
+
65
=
13.
0
+
30
=
14.
0
+
90
=
15.
15
+
25
=
16.
35
+
50
=
17.
20
+
60
=
18.
0
+
70
=
19.
25
+
75
=
20.
5
+
90
=
21.
45
+
50
=
22.
15
+
25
=
23.
25
+
70
=
24.
35
+
40
=
25.
20
+
55
=
26.
0
+
100
=
27.
20
+
80
=
28.
35
+
65
=
29.
0
+
35
=
30.
25
+
50
=
31.
10
+
85
=
32.
10
+
80
=
33.
25
+
55
=
34.
15
+
70
=
35.
10
+
80
=
36.
20
+
45
=
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Oefen de erbijsommen tot 100
| ANTWOORDEN

Erbijsommen
1.
45
+
45
=
90
2.
10
+
60
=
70
3.
15
+
65
=
80
4.
25
+
70
=
95
5.
10
+
70
=
80
6.
30
+
35
=
65
7.
30
+
35
=
65
8.
5
+
15
=
20
9.
15
+
25
=
40
10.
30
+
50
=
80
11.
10
+
50
=
60
12.
25
+
65
=
90
13.
0
+
30
=
30
14.
0
+
90
=
90
15.
15
+
25
=
40
16.
35
+
50
=
85
17.
20
+
60
=
80
18.
0
+
70
=
70
19.
25
+
75
=
100
20.
5
+
90
=
95
21.
45
+
50
=
95
22.
15
+
25
=
40
23.
25
+
70
=
95
24.
35
+
40
=
75
25.
20
+
55
=
75
26.
0
+
100
=
100
27.
20
+
80
=
100
28.
35
+
65
=
100
29.
0
+
35
=
35
30.
25
+
50
=
75
31.
10
+
85
=
95
32.
10
+
80
=
90
33.
25
+
55
=
80
34.
15
+
70
=
85
35.
10
+
80
=
90
36.
20
+
45
=
65
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen