Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
820 + 59 =
879
3
4
2
|
2.
660 + 293 =
953
4
2
3
|
3.
74 + 665 =
3
739
2
4
|
4.
612 + 204 =
816
4
2
3
|
|
5.
8 + 71 =
3
2
79
4
|
6.
209 + 571 =
4
780
3
2
|
7.
206 + 31 =
3
237
2
4
|
8.
737 + 37 =
2
4
774
3
|
|
9.
768 + 15 =
783
2
3
4
|
10.
14 + 401 =
415
4
3
2
|
11.
346 + 308 =
4
654
2
3
|
12.
569 + 297 =
2
3
4
866
|
|
13.
729 + 248 =
4
977
3
2
|
14.
968 + 23 =
4
3
2
991
|
15.
637 + 118 =
3
2
4
755
|
16.
968 + 23 =
4
991
3
2
|
|
17.
68 + 150 =
3
2
4
218
|
18.
483 + 371 =
4
854
2
3
|
19.
21 + 463 =
4
2
3
484
|
20.
460 – 284 =
2
176
3
4
|