Oefen de erbijsom en erafsom tot 100
In de mix
|
1.
40 + 5 =
2
45
|
2.
56 – 14 =
42
2
|
3.
98 + 0 =
98
2
|
4.
33 + 11 =
2
44
|
|
5.
80 + 5 =
85
2
|
6.
59 – 14 =
45
2
|
7.
41 + 38 =
2
79
|
8.
69 – 37 =
2
32
|
|
9.
26 – 2 =
2
24
|
10.
34 – 31 =
1
3
|
11.
89 + 0 =
89
2
|
12.
66 + 14 =
2
80
|
|
13.
100 + 0 =
2
100
|
14.
13 – 9 =
4
1
|
15.
42 – 31 =
11
1
|
16.
67 – 47 =
20
2
|
|
17.
12 + 17 =
2
29
|
18.
1 – 0 =
2
1
|
19.
65 + 1 =
2
66
|
20.
28 + 71 =
99
2
|