Rekensommen met erbij en eraf tot 1.000
In de mix
|
1.
844 – 240 =
604
2
|
2.
21 + 218 =
2
239
|
3.
631 + 93 =
724
2
|
4.
427 – 174 =
2
253
|
|
5.
243 + 564 =
2
807
|
6.
852 + 86 =
2
938
|
7.
897 – 873 =
24
2
|
8.
137 – 70 =
67
2
|
|
9.
776 – 670 =
2
106
|
10.
305 – 189 =
116
2
|
11.
328 – 266 =
62
2
|
12.
292 + 271 =
2
563
|
|
13.
452 – 37 =
2
415
|
14.
734 + 235 =
969
2
|
15.
940 + 47 =
987
2
|
16.
615 + 82 =
2
697
|
|
17.
258 – 220 =
38
2
|
18.
602 – 312 =
290
2
|
19.
872 + 90 =
962
2
|
20.
566 + 249 =
2
815
|