Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
762 + 41 =
803
2
|
2.
898 + 38 =
936
2
|
3.
580 + 406 =
986
2
|
4.
948 – 311 =
637
2
|
|
5.
28 – 26 =
2
1
|
6.
109 + 112 =
2
221
|
7.
946 + 4 =
950
2
|
8.
672 – 636 =
2
36
|
|
9.
380 + 268 =
2
648
|
10.
831 + 108 =
939
2
|
11.
460 – 14 =
446
2
|
12.
785 + 175 =
2
960
|
|
13.
215 + 617 =
832
2
|
14.
318 + 263 =
581
2
|
15.
345 + 438 =
783
2
|
16.
795 + 112 =
907
2
|
|
17.
466 – 60 =
2
406
|
18.
792 + 86 =
2
878
|
19.
960 + 10 =
970
2
|
20.
494 – 325 =
169
2
|