Erbij en eraf tot 1.000
In de mix
|
1.
570 – 567 =
1
3
|
2.
989 – 636 =
353
2
|
3.
394 + 26 =
420
2
|
4.
771 – 646 =
2
125
|
|
5.
764 + 40 =
2
804
|
6.
293 – 239 =
2
54
|
7.
120 + 867 =
987
2
|
8.
426 + 286 =
2
712
|
|
9.
454 + 365 =
2
819
|
10.
384 + 115 =
499
2
|
11.
593 + 225 =
2
818
|
12.
560 + 358 =
2
918
|
|
13.
700 – 584 =
2
116
|
14.
750 – 729 =
2
21
|
15.
318 – 232 =
86
2
|
16.
60 + 585 =
2
645
|
|
17.
673 – 409 =
264
2
|
18.
256 – 9 =
2
247
|
19.
336 – 173 =
2
163
|
20.
89 – 56 =
2
33
|