Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
372 + 594 =
966
2
|
2.
529 + 67 =
596
2
|
3.
189 – 84 =
2
105
|
4.
398 + 599 =
2
997
|
|
5.
946 + 14 =
960
2
|
6.
408 – 299 =
109
2
|
7.
842 + 98 =
940
2
|
8.
894 + 12 =
906
2
|
|
9.
543 – 66 =
477
2
|
10.
968 + 9 =
977
2
|
11.
295 + 227 =
2
522
|
12.
108 – 34 =
2
74
|
|
13.
170 – 16 =
2
154
|
14.
947 + 39 =
986
2
|
15.
391 + 530 =
2
921
|
16.
351 + 413 =
2
764
|
|
17.
490 + 360 =
2
850
|
18.
351 – 212 =
139
2
|
19.
101 – 24 =
77
2
|
20.
590 + 280 =
2
870
|