Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
58 + 150 =
2
208
|
2.
537 + 92 =
629
2
|
3.
452 – 58 =
2
394
|
4.
966 – 21 =
2
945
|
|
5.
589 + 207 =
2
796
|
6.
121 + 10 =
2
131
|
7.
514 + 445 =
2
959
|
8.
908 + 35 =
943
2
|
|
9.
140 – 105 =
35
2
|
10.
191 – 86 =
2
105
|
11.
791 + 38 =
2
829
|
12.
773 – 282 =
2
491
|
|
13.
494 + 60 =
554
2
|
14.
856 – 329 =
527
2
|
15.
946 – 4 =
2
942
|
16.
990 + 10 =
1000
2
|
|
17.
933 – 100 =
2
833
|
18.
575 – 470 =
2
105
|
19.
853 + 81 =
2
934
|
20.
209 + 204 =
2
413
|