Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
539 – 131 =
408
3
2
4
|
2.
364 + 577 =
3
4
941
2
|
3.
241 + 61 =
2
4
302
3
|
4.
889 + 9 =
3
898
2
4
|
|
5.
680 – 27 =
4
2
653
3
|
6.
735 – 110 =
4
3
625
2
|
7.
657 – 109 =
4
548
3
2
|
8.
188 – 109 =
2
3
4
79
|
|
9.
976 – 88 =
3
888
2
4
|
10.
499 – 427 =
3
4
72
2
|
11.
961 – 178 =
2
3
4
783
|
12.
840 + 137 =
3
2
4
977
|
|
13.
788 + 92 =
4
880
2
3
|
14.
981 – 946 =
3
2
35
4
|
15.
994 – 786 =
2
4
3
208
|
16.
694 + 239 =
933
2
3
4
|
|
17.
2 + 374 =
4
3
2
376
|
18.
241 – 90 =
3
151
4
2
|
19.
630 – 38 =
3
592
4
2
|
20.
835 – 635 =
4
200
2
3
|