Oefen de erbijsom en erafsom tot 100
In de mix
|
1.
72 – 56 =
16
2
|
2.
32 + 57 =
89
2
|
3.
2 + 71 =
73
2
|
4.
58 – 5 =
53
2
|
|
5.
35 – 21 =
14
1
|
6.
84 – 30 =
54
2
|
7.
7 + 72 =
79
2
|
8.
5 – 0 =
5
1
|
|
9.
12 – 7 =
5
1
|
10.
15 + 79 =
94
2
|
11.
77 – 56 =
2
21
|
12.
100 – 90 =
1
10
|
|
13.
93 + 0 =
93
2
|
14.
81 – 50 =
2
31
|
15.
100 – 63 =
37
2
|
16.
89 + 7 =
96
2
|
|
17.
81 – 72 =
1
9
|
18.
61 – 3 =
2
58
|
19.
84 – 80 =
4
1
|
20.
55 – 10 =
2
45
|