Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
59 – 12 =
2
47
|
2.
783 + 82 =
2
865
|
3.
573 – 411 =
162
2
|
4.
47 – 31 =
2
16
|
|
5.
707 – 649 =
58
2
|
6.
188 – 121 =
67
2
|
7.
447 + 89 =
536
2
|
8.
574 + 150 =
2
724
|
|
9.
436 + 295 =
731
2
|
10.
559 + 415 =
974
2
|
11.
274 + 686 =
960
2
|
12.
692 + 202 =
2
894
|
|
13.
196 – 118 =
2
78
|
14.
255 + 115 =
2
370
|
15.
102 – 32 =
70
2
|
16.
62 – 0 =
62
2
|
|
17.
59 + 794 =
853
2
|
18.
875 – 530 =
345
2
|
19.
154 – 83 =
71
2
|
20.
871 – 285 =
2
586
|