Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
220 – 117 =
4
3
103
2
|
2.
281 + 57 =
2
3
338
4
|
3.
304 – 276 =
28
2
4
3
|
4.
661 + 51 =
2
712
3
4
|
|
5.
800 + 23 =
823
4
2
3
|
6.
677 + 117 =
4
2
794
3
|
7.
407 + 344 =
751
3
4
2
|
8.
157 + 773 =
2
3
4
930
|
|
9.
26 + 881 =
4
3
2
907
|
10.
492 – 36 =
456
4
3
2
|
11.
544 + 325 =
869
3
2
4
|
12.
666 – 129 =
537
3
4
2
|
|
13.
934 – 343 =
3
591
2
4
|
14.
321 – 267 =
3
4
54
2
|
15.
857 + 105 =
4
3
962
2
|
16.
87 + 756 =
3
843
4
2
|
|
17.
439 + 457 =
4
896
2
3
|
18.
446 + 193 =
639
4
2
3
|
19.
182 + 459 =
4
2
641
3
|
20.
959 + 11 =
3
2
970
4
|