Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
54 + 26 =
80
2
|
2.
731 + 126 =
857
2
|
3.
631 – 626 =
5
1
|
4.
105 – 100 =
5
1
|
|
5.
199 + 734 =
933
2
|
6.
885 – 265 =
2
620
|
7.
416 – 357 =
59
2
|
8.
748 – 468 =
280
2
|
|
9.
67 + 136 =
203
2
|
10.
449 + 431 =
2
880
|
11.
917 + 59 =
2
976
|
12.
569 – 41 =
2
528
|
|
13.
225 – 147 =
78
2
|
14.
16 + 485 =
501
2
|
15.
849 – 383 =
2
466
|
16.
34 + 739 =
773
2
|
|
17.
921 + 61 =
982
2
|
18.
904 – 578 =
2
326
|
19.
57 – 37 =
20
2
|
20.
79 + 839 =
918
2
|