Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
599 – 20 =
3
4
2
579
|
2.
993 + 4 =
2
3
997
4
|
3.
208 + 604 =
3
812
4
2
|
4.
396 + 309 =
705
4
2
3
|
|
5.
492 + 24 =
3
2
516
4
|
6.
981 + 9 =
3
4
2
990
|
7.
448 – 370 =
78
2
3
4
|
8.
302 – 270 =
4
2
32
3
|
|
9.
833 + 144 =
3
977
4
2
|
10.
474 + 376 =
3
4
2
850
|
11.
170 – 1 =
4
2
169
3
|
12.
338 + 263 =
2
601
4
3
|
|
13.
488 + 51 =
2
539
3
4
|
14.
247 + 691 =
938
2
4
3
|
15.
373 – 135 =
4
238
2
3
|
16.
990 – 151 =
2
839
4
3
|
|
17.
275 – 86 =
3
2
189
4
|
18.
607 + 315 =
4
922
2
3
|
19.
895 – 625 =
2
4
3
270
|
20.
485 + 242 =
4
3
727
2
|