Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
577 + 198 =
2
775
|
2.
903 – 721 =
2
182
|
3.
344 – 337 =
7
1
|
4.
117 + 703 =
2
820
|
|
5.
636 + 317 =
2
953
|
6.
451 + 186 =
637
2
|
7.
504 + 373 =
877
2
|
8.
993 + 7 =
2
1000
|
|
9.
737 + 13 =
750
2
|
10.
753 – 725 =
2
28
|
11.
961 + 9 =
2
970
|
12.
688 + 90 =
2
778
|
|
13.
991 – 118 =
2
873
|
14.
235 – 81 =
2
154
|
15.
1000 – 227 =
2
773
|
16.
754 – 142 =
2
612
|
|
17.
671 + 211 =
2
882
|
18.
4 – 2 =
2
1
|
19.
39 + 931 =
970
2
|
20.
624 – 27 =
597
2
|