Oefen de erbijsommen tot 100

Erbijsommen
1.
45
+
55
=
2.
35
+
55
=
3.
15
+
85
=
4.
15
+
85
=
5.
15
+
45
=
6.
10
+
30
=
7.
10
+
60
=
8.
0
+
80
=
9.
15
+
70
=
10.
25
+
35
=
11.
20
+
60
=
12.
15
+
70
=
13.
5
+
70
=
14.
0
+
75
=
15.
40
+
50
=
16.
35
+
40
=
17.
15
+
55
=
18.
15
+
80
=
19.
25
+
70
=
20.
35
+
50
=
21.
45
+
45
=
22.
10
+
85
=
23.
40
+
50
=
24.
30
+
65
=
25.
25
+
65
=
26.
25
+
40
=
27.
0
+
90
=
28.
0
+
95
=
29.
20
+
50
=
30.
45
+
50
=
31.
0
+
70
=
32.
10
+
85
=
33.
5
+
30
=
34.
5
+
90
=
35.
0
+
100
=
36.
20
+
65
=
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Oefen de erbijsommen tot 100
| ANTWOORDEN

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