Oefen de erbijsom en erafsom tot 100
In de mix
|
1.
24 + 54 =
78
2
|
2.
73 + 14 =
2
87
|
3.
41 – 34 =
1
7
|
4.
99 + 0 =
2
99
|
|
5.
10 – 4 =
1
6
|
6.
48 + 46 =
94
2
|
7.
5 + 1 =
1
6
|
8.
30 – 5 =
25
2
|
|
9.
23 – 1 =
2
22
|
10.
34 + 15 =
49
2
|
11.
13 + 18 =
2
31
|
12.
32 + 55 =
2
87
|
|
13.
33 + 63 =
2
96
|
14.
46 + 39 =
2
85
|
15.
27 + 30 =
2
57
|
16.
17 + 0 =
17
2
|
|
17.
23 – 23 =
2
0
|
18.
76 + 2 =
2
78
|
19.
18 – 2 =
2
16
|
20.
31 – 8 =
2
23
|