Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
378 – 82 =
2
296
|
2.
623 + 291 =
2
914
|
3.
695 + 201 =
2
896
|
4.
130 + 523 =
653
2
|
|
5.
886 – 324 =
562
2
|
6.
242 – 135 =
2
107
|
7.
718 – 522 =
2
196
|
8.
497 + 376 =
873
2
|
|
9.
999 + 1 =
1000
2
|
10.
907 + 23 =
2
930
|
11.
351 + 504 =
2
855
|
12.
975 + 6 =
2
981
|
|
13.
868 + 124 =
2
992
|
14.
103 – 54 =
49
2
|
15.
305 – 66 =
2
239
|
16.
526 – 371 =
2
155
|
|
17.
238 + 599 =
837
2
|
18.
23 – 1 =
22
2
|
19.
515 + 227 =
2
742
|
20.
252 + 647 =
899
2
|