Oefen de erbijsom en erafsom tot 100
In de mix
|
1.
96 + 3 =
2
99
|
2.
17 + 31 =
2
48
|
3.
25 – 18 =
7
1
|
4.
12 – 6 =
6
1
|
|
5.
58 + 19 =
77
2
|
6.
39 – 1 =
38
2
|
7.
1 + 70 =
2
71
|
8.
43 – 31 =
1
12
|
|
9.
62 – 7 =
55
2
|
10.
12 + 0 =
12
1
|
11.
72 – 9 =
63
2
|
12.
30 + 64 =
2
94
|
|
13.
4 – 1 =
3
1
|
14.
54 + 24 =
78
2
|
15.
83 – 10 =
2
73
|
16.
71 – 59 =
12
1
|
|
17.
18 – 3 =
15
1
|
18.
14 – 2 =
1
12
|
19.
43 + 28 =
2
71
|
20.
33 – 13 =
2
20
|