Oefen de erafsommen tot 100

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

Oefen de erafsommen tot 100
| ANTWOORDEN

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