Oefen de erbijsom en erafsom tot 100
In de mix
|
1.
8 – 1 =
1
7
|
2.
9 – 7 =
1
2
|
3.
63 – 41 =
2
22
|
4.
80 + 2 =
2
82
|
|
5.
24 – 13 =
1
11
|
6.
26 – 3 =
23
2
|
7.
55 + 42 =
2
97
|
8.
88 + 5 =
2
93
|
|
9.
57 – 9 =
48
2
|
10.
59 – 46 =
13
1
|
11.
28 – 28 =
0
2
|
12.
100 + 0 =
2
100
|
|
13.
20 – 18 =
1
2
|
14.
67 – 2 =
2
65
|
15.
15 – 0 =
15
1
|
16.
54 – 12 =
42
2
|
|
17.
62 + 26 =
2
88
|
18.
28 + 5 =
33
2
|
19.
48 – 39 =
1
9
|
20.
86 + 7 =
2
93
|