Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
789 + 176 =
2
965
|
2.
58 – 21 =
37
2
|
3.
734 + 224 =
2
958
|
4.
755 – 105 =
2
650
|
|
5.
621 – 42 =
2
579
|
6.
580 + 326 =
2
906
|
7.
190 + 796 =
2
986
|
8.
136 – 16 =
2
120
|
|
9.
128 + 284 =
2
412
|
10.
456 + 468 =
924
2
|
11.
239 – 141 =
2
98
|
12.
444 – 417 =
27
2
|
|
13.
641 – 403 =
238
2
|
14.
256 – 210 =
46
2
|
15.
498 – 295 =
2
203
|
16.
226 + 331 =
2
557
|
|
17.
102 – 17 =
2
85
|
18.
968 + 14 =
982
2
|
19.
638 + 18 =
2
656
|
20.
115 + 851 =
966
2
|