Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
192 – 49 =
2
143
|
2.
90 + 288 =
378
2
|
3.
579 – 320 =
2
259
|
4.
304 + 324 =
2
628
|
|
5.
987 + 9 =
2
996
|
6.
24 – 18 =
6
1
|
7.
10 + 484 =
2
494
|
8.
843 + 132 =
975
2
|
|
9.
199 + 570 =
2
769
|
10.
176 + 699 =
875
2
|
11.
497 + 55 =
2
552
|
12.
757 + 6 =
2
763
|
|
13.
613 – 131 =
482
2
|
14.
280 + 28 =
308
2
|
15.
865 + 109 =
974
2
|
16.
745 – 51 =
2
694
|
|
17.
184 – 64 =
2
120
|
18.
847 – 119 =
2
728
|
19.
824 + 145 =
2
969
|
20.
375 + 430 =
805
2
|