Rekensommen met erbij en eraf tot 1.000
In de mix
|
1.
170 – 27 =
2
143
|
2.
897 + 92 =
2
989
|
3.
670 + 213 =
2
883
|
4.
847 – 845 =
1
2
|
|
5.
620 – 156 =
464
2
|
6.
125 + 271 =
396
2
|
7.
462 + 23 =
2
485
|
8.
320 + 143 =
463
2
|
|
9.
909 + 39 =
948
2
|
10.
281 + 623 =
904
2
|
11.
990 + 1 =
2
991
|
12.
783 + 132 =
915
2
|
|
13.
938 + 18 =
956
2
|
14.
123 + 605 =
728
2
|
15.
582 + 415 =
997
2
|
16.
755 – 434 =
2
321
|
|
17.
224 – 111 =
113
2
|
18.
169 + 312 =
2
481
|
19.
777 – 77 =
700
2
|
20.
471 + 386 =
2
857
|