Erbij en eraf tot 100
In de mix
|
1.
8 – 1 =
7
1
|
2.
31 + 54 =
85
2
|
3.
84 – 42 =
42
2
|
4.
17 – 13 =
4
1
|
|
5.
88 – 77 =
1
11
|
6.
1 + 80 =
81
2
|
7.
85 – 68 =
2
17
|
8.
84 + 4 =
88
2
|
|
9.
16 + 25 =
2
41
|
10.
79 – 75 =
4
1
|
11.
67 – 58 =
9
1
|
12.
83 – 70 =
13
1
|
|
13.
70 + 25 =
95
2
|
14.
71 + 7 =
78
2
|
15.
38 – 12 =
26
2
|
16.
79 + 1 =
80
2
|
|
17.
57 + 18 =
2
75
|
18.
97 – 81 =
16
2
|
19.
9 + 31 =
2
40
|
20.
84 – 43 =
2
41
|