Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
782 – 738 =
3
2
44
4
|
2.
873 – 171 =
702
4
3
2
|
3.
710 + 27 =
2
3
737
4
|
4.
291 – 274 =
3
17
2
4
|
|
5.
71 – 45 =
3
4
26
2
|
6.
161 + 423 =
2
3
4
584
|
7.
65 – 19 =
3
2
46
4
|
8.
594 + 11 =
605
4
2
3
|
|
9.
719 + 146 =
865
4
3
2
|
10.
423 + 511 =
3
934
2
4
|
11.
748 – 537 =
3
2
211
4
|
12.
122 – 108 =
2
1
14
3
|
|
13.
331 – 284 =
47
3
4
2
|
14.
559 + 116 =
2
4
3
675
|
15.
844 + 95 =
939
4
2
3
|
16.
212 – 104 =
4
3
2
108
|
|
17.
356 – 43 =
4
2
3
313
|
18.
27 – 23 =
3
4
1
2
|
19.
33 + 333 =
4
2
3
366
|
20.
804 + 171 =
4
975
3
2
|