Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
331 + 640 =
3
971
2
4
|
2.
867 – 76 =
4
2
791
3
|
3.
885 + 51 =
3
4
936
2
|
4.
921 – 88 =
4
3
2
833
|
|
5.
470 – 278 =
2
4
192
3
|
6.
487 – 248 =
239
4
3
2
|
7.
263 + 126 =
2
4
3
389
|
8.
202 – 152 =
50
4
2
3
|
|
9.
562 + 78 =
640
2
3
4
|
10.
695 + 33 =
3
728
4
2
|
11.
285 + 638 =
3
923
2
4
|
12.
679 + 83 =
762
2
3
4
|
|
13.
745 – 451 =
294
3
4
2
|
14.
170 + 238 =
4
408
3
2
|
15.
739 + 106 =
845
3
2
4
|
16.
425 – 74 =
4
3
351
2
|
|
17.
647 + 49 =
696
2
4
3
|
18.
744 + 209 =
2
4
3
953
|
19.
236 – 80 =
4
2
3
156
|
20.
748 – 196 =
552
3
2
4
|