Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
468 + 129 =
2
597
|
2.
980 + 13 =
993
2
|
3.
251 – 66 =
185
2
|
4.
549 – 178 =
2
371
|
|
5.
729 + 231 =
960
2
|
6.
863 + 19 =
2
882
|
7.
486 – 193 =
293
2
|
8.
499 – 58 =
2
441
|
|
9.
288 – 133 =
2
155
|
10.
74 – 10 =
2
64
|
11.
421 – 361 =
2
60
|
12.
554 – 243 =
311
2
|
|
13.
786 + 6 =
2
792
|
14.
899 + 60 =
2
959
|
15.
186 + 637 =
823
2
|
16.
492 – 70 =
2
422
|
|
17.
967 + 30 =
2
997
|
18.
255 + 332 =
2
587
|
19.
969 + 24 =
993
2
|
20.
961 – 81 =
880
2
|