Erbij en eraf tot 1.000
In de mix
|
1.
8 + 475 =
483
2
|
2.
228 + 248 =
2
476
|
3.
541 – 127 =
2
414
|
4.
198 – 152 =
2
46
|
|
5.
260 – 206 =
2
54
|
6.
277 + 586 =
863
2
|
7.
863 – 727 =
136
2
|
8.
234 – 113 =
2
121
|
|
9.
805 – 249 =
2
556
|
10.
687 – 365 =
2
322
|
11.
709 – 45 =
2
664
|
12.
146 – 50 =
96
2
|
|
13.
100 – 100 =
0
2
|
14.
591 + 313 =
2
904
|
15.
872 + 62 =
2
934
|
16.
685 + 102 =
2
787
|
|
17.
40 + 883 =
923
2
|
18.
187 + 387 =
2
574
|
19.
403 + 222 =
625
2
|
20.
484 – 47 =
2
437
|