Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
388 + 114 =
502
2
|
2.
311 – 238 =
2
73
|
3.
107 + 593 =
700
2
|
4.
650 + 259 =
909
2
|
|
5.
566 + 416 =
2
982
|
6.
173 – 114 =
59
2
|
7.
519 – 345 =
174
2
|
8.
198 + 144 =
342
2
|
|
9.
520 – 90 =
430
2
|
10.
923 – 341 =
2
582
|
11.
252 – 238 =
1
14
|
12.
395 + 604 =
2
999
|
|
13.
885 + 100 =
2
985
|
14.
909 + 62 =
2
971
|
15.
614 – 223 =
391
2
|
16.
134 + 689 =
823
2
|
|
17.
416 + 450 =
866
2
|
18.
436 – 418 =
2
18
|
19.
11 – 2 =
9
1
|
20.
412 + 358 =
2
770
|