Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
624 + 337 =
2
961
|
2.
416 + 84 =
500
2
|
3.
374 – 188 =
2
186
|
4.
983 + 9 =
2
992
|
|
5.
158 – 138 =
20
2
|
6.
954 – 438 =
516
2
|
7.
28 + 398 =
426
2
|
8.
778 – 710 =
68
2
|
|
9.
837 – 167 =
2
670
|
10.
138 – 30 =
108
2
|
11.
483 – 77 =
406
2
|
12.
87 + 731 =
2
818
|
|
13.
128 – 31 =
97
2
|
14.
797 – 403 =
2
394
|
15.
231 – 60 =
171
2
|
16.
702 + 167 =
2
869
|
|
17.
370 – 274 =
96
2
|
18.
753 – 701 =
2
52
|
19.
43 + 571 =
614
2
|
20.
864 + 87 =
2
951
|