Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
432 – 284 =
148
2
|
2.
918 – 452 =
2
466
|
3.
123 + 717 =
840
2
|
4.
88 + 207 =
2
295
|
|
5.
348 – 51 =
2
297
|
6.
779 – 101 =
2
678
|
7.
642 + 280 =
922
2
|
8.
519 + 390 =
2
909
|
|
9.
95 – 21 =
74
2
|
10.
160 + 750 =
2
910
|
11.
27 + 963 =
2
990
|
12.
1000 – 101 =
2
899
|
|
13.
638 + 7 =
2
645
|
14.
29 – 5 =
24
2
|
15.
799 + 159 =
2
958
|
16.
535 – 427 =
108
2
|
|
17.
136 – 13 =
2
123
|
18.
863 + 41 =
2
904
|
19.
518 + 386 =
2
904
|
20.
454 + 6 =
460
2
|