Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
123 + 778 =
3
2
901
4
|
2.
355 – 61 =
294
4
2
3
|
3.
528 + 161 =
2
689
3
4
|
4.
199 + 218 =
3
2
4
417
|
|
5.
826 + 117 =
943
2
4
3
|
6.
74 + 777 =
3
2
4
851
|
7.
113 – 4 =
2
4
109
3
|
8.
903 + 65 =
2
4
3
968
|
|
9.
682 – 63 =
3
4
619
2
|
10.
137 + 3 =
2
3
140
4
|
11.
475 – 218 =
3
2
257
4
|
12.
253 – 34 =
2
4
3
219
|
|
13.
733 – 335 =
398
4
2
3
|
14.
381 + 187 =
2
4
568
3
|
15.
231 + 258 =
4
2
489
3
|
16.
670 – 504 =
2
3
4
166
|
|
17.
857 – 77 =
3
780
4
2
|
18.
737 + 85 =
3
822
2
4
|
19.
628 + 129 =
757
4
3
2
|
20.
182 + 204 =
386
4
2
3
|