Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
513 + 388 =
2
901
|
2.
882 – 685 =
197
2
|
3.
810 – 630 =
180
2
|
4.
793 – 244 =
2
549
|
|
5.
484 + 267 =
751
2
|
6.
619 + 366 =
985
2
|
7.
304 + 524 =
2
828
|
8.
653 + 339 =
992
2
|
|
9.
592 + 2 =
2
594
|
10.
710 – 651 =
2
59
|
11.
776 + 142 =
2
918
|
12.
887 – 290 =
2
597
|
|
13.
328 + 654 =
982
2
|
14.
264 – 245 =
19
2
|
15.
6 – 6 =
0
2
|
16.
747 + 252 =
2
999
|
|
17.
5 – 2 =
3
1
|
18.
877 – 750 =
127
2
|
19.
509 – 99 =
410
2
|
20.
85 – 58 =
27
2
|